Red hair is most commonly found at both the west and eastern fringes of modern Europe. Although red hair in the human population is most commonly associated with those of the British Isles (more specifically the Scots and Irish), dark red or reddish-tinged hair can be found in a few other Caucasian populations. The Galatian invasion of 275 BC has resulted in a smattering of red hair in the population of modern-day Turkey, as well as some in Iran. The Berber and Kabylie populations of northern Algeria have occasional red heads. The Classical Greek historian, Herodotus described his 'Budini' (probably Votyak a ...

See also:

Red hair, Red hair - Historical distribution, Red hair - Biochemistry and genetics of red hair, Red hair - Kwashiorkor condition, Red hair - Social implications, Red hair - Myths and stories related to red hair, Red hair - Notes

Read more here: » Red hair: Encyclopedia II - Red hair - Historical distribution

The following castes do not appear in the movies and are thus not considered canon. Xenomorph - Praetorian. A royal elite guard to the Queen. Praetorians are larger than typical adults, but still only about half the size of the queen herself. Praetorians appear in the graphic novel series (and the Millennium/Orion books based on the same), such as Rogue and Female War (originally serialised as Earth War). They are also a playable class in the computer game Aliens vs. Predator ...

See also:

Xenomorph, Xenomorph - The name, Xenomorph - Characteristics, Xenomorph - Life cycle, Xenomorph - Behavioural & defensive attributes, Xenomorph - The Queen, Xenomorph - Birth, Xenomorph - Hive relationships, Xenomorph - Design, Xenomorph - Non-Canon castes, Xenomorph - Praetorian, Xenomorph - PredAlien, Xenomorph - Queen Mother, Xenomorph - Empress, Xenomorph - PredQueen, Xenomorph - Rogue, Xenomorph - K-Series, Xenomorph - Carrier/Ravager, Xenomorph - Xenoborg, Xenomorph - Human-Alien, Xenomorph - Other non-canon castes, Xenomorph - Variations, Xenomorph - Body shape, Xenomorph - Tail, Xenomorph - Head, Xenomorph - Fingers, Xenomorph - Reproduction, Xenomorph - Debate, Xenomorph - DNA assimilation, Xenomorph - Caste/cowl, Xenomorph - Endoskeleton, Xenomorph - Genetic adaptability, Xenomorph - Theories, Xenomorph - Movie appearances

Read more here: » Xenomorph: Encyclopedia II - Xenomorph - Non-Canon castes

The following closely related terms may be used to designate abnormal growths: Neoplasia and neoplasm are the accurate, scientific names for this group of diseases as defined in the first paragraph above. This group contains a large number of different diseases; the usual classification is listed below. Neoplasms can be benign or malignant. Cancer is a widely used word that is usually understood as synonymous with malignant neoplasm. Occasionally, it is used instead of carcinoma ...

See also:

Cancer, Cancer - History, Cancer - Nomenclature and classification, Cancer - Adult cancers, Cancer - Childhood cancers, Cancer - Causes and pathophysiology, Cancer - Origins of cancer, Cancer - Molecular biology, Cancer - Morphology, Cancer - Heredity, Cancer - Environment and diet, Cancer - Epidemiology, Cancer - Prevention, Cancer - Diet and cancer, Cancer - Other chemoprevention agents, Cancer - Genetic testing, Cancer - Diagnosing cancer, Cancer - Signs and symptoms, Cancer - Biopsy, Cancer - Screening, Cancer - Treatment of cancer, Cancer - Surgery, Cancer - Chemotherapy, Cancer - Immunotherapy, Cancer - Radiation therapy, Cancer - Hormonal suppression, Cancer - Symptom control, Cancer - Treatment trials, Cancer - Complementary and alternative medicine, Cancer - Cancer vaccines, Cancer - Coping with cancer, Cancer - Social impact, Cancer - Cancer research

Read more here: » Cancer: Encyclopedia II - Cancer - Nomenclature and classification

Today, the general availability of birth control methods has made inbreeding a largely separate issue from incest. Opponents of incest argue, however, that incest should still be restricted since birth control is not always 100% effective. Some have suggested that the incest taboo is a social mechanism to reduce the chances of congenital birth-defects that can result from inbreeding. Scientists have generally rejected this as an explanation for the incest taboo for two reasons. First, in many societies partners with whom marriage is f ...

See also:

Incest, Incest - Incest and inbreeding, Incest - Incest versus exogamy, Incest - Industrial societies, Incest - Consensual adult incest, Incest - History, Incest - Ancient Egypt, Incest - Royal dynasties, Incest - In religious traditions, Incest - In mythology, Incest - In religion, Incest - Fiction, Incest - Genetics

Read more here: » Incest: Encyclopedia II - Incest - Genetics

Gender role is composed of several elements. A person's gender role can be expressed through clothing, behaviour, choice of work, personal relationships and other factors. Gender roles were traditionally divided into strictly feminine and masculine gender roles, though these roles have diversified today into many different acceptable male or female gender roles. However, gender role norm's for women and men can vary significantly from one country or culture to another, even within a country or culture. Peopl ...

See also:

Gender role, Gender role - Talcott Parsons' views of gender roles, Gender role - Socialization, Gender role - Criticism of Biologism, Gender role - Changing roles, Gender role - Culture and Gender roles, Gender role - Transgendered and Intersexed people, Gender role - Gender roles and feminism, Gender role - Terminology, Gender role - Sexual orientation and gender roles, Gender role - Brief Description of Gender Roles In Prison, Gender role - Notes and references

Read more here: » Gender role: Encyclopedia II - Gender role - Changing roles

The domestic cat was named Felis catus by Carolus Linnaeus in his Systema Naturae of 1758. Johann Christian Daniel von Schreber named the wild cat Felis silvestris in 1775. The domestic cat is now considered a subspecies of the wild cat: by the strict rule of priority of the International Code of Zoological Nomenclature the name for the species thus ought to be F. catus since Linnaeus published first. However, in practice almost all biologists use F. silvestris for the wild species, usin ...

See also:

Cat, Cat - Characteristics, Cat - Physical, Cat - Senses, Cat - Communication, Cat - Hunting and diet, Cat - Hygiene, Cat - Environment, Cat - Reproduction and genetics, Cat - Domestication, Cat - Feral cats, Cat - Environmental issues, Cat - Scientific classification, Cat - Varieties of domestic cat, Cat - History and mythology

Read more here: » Cat: Encyclopedia II - Cat - Scientific classification

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions specifying the biological development of all cellular forms of life (and most viruses). DNA is a long polymer of nucleotides and encodes the sequence of the amino acid residues in proteins using the genetic code, a triplet code of nucleotides. In complex cells (eukaryotes), such as those from plants, animals, fungi and protists, most of the DNA is located in the cell nucleus. By contrast, in simpler cells called prokaryotes (the eubacter ...

Including:

• DNA - Overview
• DNA - DNA in practice
• DNA - DNA in crime
• DNA - DNA in computation
• DNA - Overview of molecular structure
• DNA - The role of the sequence
• DNA - DNA replication
• DNA - Mechanical properties relevant to biology
• DNA - Strands association and dissociation
• DNA - Circular DNA
• DNA - Great length versus tiny breadth
• DNA - Entropic stretching behavior
• DNA - Different helix geometries
• DNA - Non-helical forms
• DNA - Direction of DNA strands
• DNA - Chemical nomenclature 5' and 3'
• DNA - Sense and antisense
• DNA - Distinction between sense and antisense strands
• DNA - As viewed by topologists
• DNA - Single-stranded DNA ssDNA and repair of mutations
• DNA - The history of DNA research
• DNA - First isolation of DNA
• DNA - Establishing a link between heritable traits and chromosomes
• DNA - Discovery of the structure of DNA
• DNA - Bibliography

Read more here: » DNA: Encyclopedia - DNA

While most countries have Le Système International d’Unités (SI), this seems to be one more reason to delve into the Furlong/Firkin/Fortnight system of units of measurement which draws its attraction from being conservative and off-beat at the same time. List of strange units of measurement - FFF Base units. Additionally, the Fahrenheit is usually considered the unit of temperature in FFF. List of stra ...

See also:

List of strange units of measurement, List of strange units of measurement - Attoparsec, List of strange units of measurement - Barn-megaparsec, List of strange units of measurement - Belgium, List of strange units of measurement - Books and Bible, List of strange units of measurement - Cigarette, List of strange units of measurement - Coffee, List of strange units of measurement - Cut-lunch-and-a-water-bag, List of strange units of measurement - Distance, List of strange units of measurement - Double-decker bus, List of strange units of measurement - FFF, List of strange units of measurement - FFF Base units, List of strange units of measurement - FFF derived units, List of strange units of measurement - Football field, List of strange units of measurement - Gillette, List of strange units of measurement - Happy, List of strange units of measurement - Helen, List of strange units of measurement - Hobo Power, List of strange units of measurement - Jiffy, List of strange units of measurement - KLOC or K-LOC, List of strange units of measurement - Koskenkorva bottle, List of strange units of measurement - Library of Congress, List of strange units of measurement - Metric, List of strange units of measurement - Microbit, List of strange units of measurement - Mikrotuki, List of strange units of measurement - Morgan, List of strange units of measurement - Nanoacre, List of strange units of measurement - Nanocentury, List of strange units of measurement - Nanosecond, List of strange units of measurement - Nelson's Column / Double-decker Bus, List of strange units of measurement - Nibble, List of strange units of measurement - Pikotuki, List of strange units of measurement - Pinkwater, List of strange units of measurement - Poronkusema, List of strange units of measurement - Potrzebie, List of strange units of measurement - Realtor's Throw, List of strange units of measurement - Rhode Island/Texas/Alaska/Washington D.C., List of strange units of measurement - Rods to the Hogshead, List of strange units of measurement - Seemeilen/Woche, List of strange units of measurement - SI-Imperial hybrids, List of strange units of measurement - Siriometer, List of strange units of measurement - Smoot, List of strange units of measurement - Stone's throw/Spitting distance, List of strange units of measurement - Sydharb, List of strange units of measurement - Tall Buildings, List of strange units of measurement - Wales/Belgium, List of strange units of measurement - Warhol

Read more here: » List of strange units of measurement: Encyclopedia II - List of strange units of measurement - FFF

The term is derived from Greek: a = negative, men = month, rhoia = flow. Derived adjectives are amenorrhoeal and amenorrheic. The opposite is the normal menstrual period. There are two types of amenorrhoea, primary and secondary amenorrhoea. Primary amenorrhoea is the absence of menstruation in a woman by the age of 16. Also, as pubertal changes precede the first period, menarche, women who have no sign of thelarche or pubarche and thus are without evidence of iniation of puberty by the age of 14 have primary amenorrhoea. (Reference: Speroff L et al, C ...

See also:

Amenorrhoea, Amenorrhoea - Etymology and definition, Amenorrhoea - Overview, Amenorrhoea - Classification, Amenorrhoea - Causes, Amenorrhoea - Primary amenorrhoea, Amenorrhoea - Secondary amenorrhoea, Amenorrhoea - Treatments, Amenorrhoea - History

Read more here: » Amenorrhoea: Encyclopedia II - Amenorrhoea - Etymology and definition

In the 19th Century, many writers, such as Washington Irving, Prosper Mérimée, George Sand, and Theophile Gautier, invented a mythical Andalusia. In their writings, Spain is converted into the Orient of the Western World (Africa begins in the Pyrenees), an exotic country full of brigands, economic delays, gypsies, ignorance, machismo, matadores, Moors, passion, political chaos, poverty and fanatical religiosity. From this literature, the figure of the Latin lover still survives. In classical music, Georges Bizet with Carmen (1875) and Nikolai Rimsky-Korsakov with ...

See also:

Black Legend, Black Legend - Origin, Black Legend - The classic sources, Black Legend - The Enlightenment, Black Legend - Romantic travellers, Black Legend - Westward Ho!, Black Legend - Modern historiography, Black Legend - Black Legend in the United States of America, Black Legend - White Legend, Black Legend - Foot notes, Black Legend - Bibliography

Read more here: » Black Legend: Encyclopedia II - Black Legend - Romantic travellers

List of ICD-9 codes - arthropathies and related disorders 710-719. (710) Diffuse diseases of connective tissue (710.0) Systemic lupus erythematosus (710.2) Sjšgren's disease (710.3) Dermatomyositis (710.4) Polymyositis (710.5) Eosinophilia myalgia syndrome (710.9) Connective tissue disease, unspec. (711) Arthropathy associated with infections (711.59) Arthropathy, other viral, multiple ...

See also:

List of ICD-9 codes, List of ICD-9 codes - 1. Infectious and parasitic diseases 001-139, List of ICD-9 codes - Intestinal infectious diseases 001-009, List of ICD-9 codes - tuberculosis 010-018, List of ICD-9 codes - zoonotic bacterial diseases 020-027, List of ICD-9 codes - other bacterial diseases 030-041, List of ICD-9 codes - human immunodeficiency virus hiv infection 042-044, List of ICD-9 codes - poliomyelitis and other non-arthropod-borne viral diseases of central nervous system 045-049, List of ICD-9 codes - viral diseases accompanied by exanthem 050-057, List of ICD-9 codes - arthropod-borne viral diseases 060-066, List of ICD-9 codes - other diseases due to viruses and chlamydiae 070-079, List of ICD-9 codes - rickettsioses and other arthropod-borne diseases 080-088, List of ICD-9 codes - syphilis and other venereal diseases 090-099, List of ICD-9 codes - other spirochetal diseases 100-104, List of ICD-9 codes - mycoses 110-118, List of ICD-9 codes - helminthiases 120-129, List of ICD-9 codes - other infectious and parasitic diseases 130-136, List of ICD-9 codes - late effects of infectious and parasitic diseases 137-139, List of ICD-9 codes - 2. Neoplasms 140-239, List of ICD-9 codes - malignant neoplasm of lip oral cavity and pharynx 140-149, List of ICD-9 codes - malignant neoplasm of digestive organs and peritoneum 150-159, List of ICD-9 codes - malignant neoplasm of respiratory and intrathoracic organs 160-165, List of ICD-9 codes - malignant neoplasm of bone connective tissue skin and breast 170-176, List of ICD-9 codes - malignant neoplasm of genitourinary organs 179-189, List of ICD-9 codes - malignant neoplasm of other and unspecified sites 190-199, List of ICD-9 codes - malignant neoplasm of lymphatic and hematopoietic tissue 200-208, List of ICD-9 codes - benign neoplasms 210-229, List of ICD-9 codes - carcinoma in situ 230-234, List of ICD-9 codes - neoplasms of uncertain behavior 235-238, List of ICD-9 codes - neoplasms of unspecified nature 239-239, List of ICD-9 codes - 3. Endocrine nutritional and metabolic diseases and immunity disorders 240-279, List of ICD-9 codes - disorders of thyroid gland 240-246, List of ICD-9 codes - diseases of other endocrine glands 250-259, List of ICD-9 codes - nutritional deficiencies 260-269, List of ICD-9 codes - other metabolic and immunity disorders 270-279, List of ICD-9 codes - 4. Diseases of the blood and blood-forming organs 280-289, List of ICD-9 codes - diseases of the blood and blood-forming organs 280-289, List of ICD-9 codes - 5. Mental disorders 290-319, List of ICD-9 codes - psychoses 290-299, List of ICD-9 codes - organic psychotic conditions 290-294, List of ICD-9 codes - other psychoses 295-299, List of ICD-9 codes - neurotic disorders personality disorders and other nonpsychotic mental disorders 300-316, List of ICD-9 codes - mental retardation 317-319, List of ICD-9 codes - 6. Diseases of the nervous system and sense organs 320-389, List of ICD-9 codes - inflammatory diseases of the central nervous system 320-326, List of ICD-9 codes - hereditary and degenerative diseases of the central nervous system 330-337, List of ICD-9 codes - other disorders of the central nervous system 340-349, List of ICD-9 codes - disorders of the peripheral nervous system 350-359, List of ICD-9 codes - disorders of the eye and adnexa 360-379, List of ICD-9 codes - diseases of the ear and mastoid process 380-389, List of ICD-9 codes - 7. Diseases of the circulatory system 390-459, List of ICD-9 codes - acute rheumatic fever 390-392, List of ICD-9 codes - chronic rheumatic heart disease 393-398, List of ICD-9 codes - hypertensive disease 401-405, List of ICD-9 codes - ischemic heart disease 410-414, List of ICD-9 codes - diseases of pulmonary circulation 415-417, List of ICD-9 codes - other forms of heart disease 420-429, List of ICD-9 codes - cerebrovascular disease 430-438, List of ICD-9 codes - diseases of arteries arterioles and capillaries 440-448, List of ICD-9 codes - diseases of veins and lymphatics and other diseases of circulatory system 451-459, List of ICD-9 codes - 8. Diseases of the respiratory system 460-519, List of ICD-9 codes - acute respiratory infections 460-466, List of ICD-9 codes - other diseases of the upper respiratory tract 470-478, List of ICD-9 codes - pneumonia and influenza 480-487, List of ICD-9 codes - chronic obstructive pulmonary disease and allied conditions 490-496, List of ICD-9 codes - pneumoconioses and other lung diseases due to external agents 500-508, List of ICD-9 codes - other diseases of respiratory system 510-519, List of ICD-9 codes - 9. Diseases of the digestive system 520-579, List of ICD-9 codes - diseases of oral cavity salivary glands and jaws 520-529, List of ICD-9 codes - diseases of esophagus stomach and duodenum 530-537, List of ICD-9 codes - appendicitis 540-543, List of ICD-9 codes - hernia of abdominal cavity 550-553, List of ICD-9 codes - noninfectious enteritis and colitis 555-558, List of ICD-9 codes - other diseases of intestines and peritoneum 560-569, List of ICD-9 codes - other diseases of digestive system 570-579, List of ICD-9 codes - 10. Diseases of the genitourinary system 580-629, List of ICD-9 codes - nephritis nephrotic syndrome and nephrosis 580-589, List of ICD-9 codes - other diseases of urinary system 590-599, List of ICD-9 codes - diseases of male genital organs 600-608, List of ICD-9 codes - disorders of breast 610-611, List of ICD-9 codes - inflammatory disease of female pelvic organs 614-616, List of ICD-9 codes - other disorders of female genital tract 617-629, List of ICD-9 codes - 11. Complications of pregnancy childbirth and the puerperium 630-676, List of ICD-9 codes - ectopic and molar pregnancy 630-633, List of ICD-9 codes - other pregnancy with abortive outcome 634-639, List of ICD-9 codes - complications mainly related to pregnancy 640-648, List of ICD-9 codes - normal delivery and other indications for care in pregnancy labor and delivery 650-659, List of ICD-9 codes - complications occurring mainly in the course of labor and delivery 660-669, List of ICD-9 codes - complications of the puerperium 670-676, List of ICD-9 codes - 12. Diseases of the skin and subcutaneous tissue 680-709, List of ICD-9 codes - infections of skin and subcutaneous tissue 680-686, List of ICD-9 codes - other inflammatory conditions of skin and subcutaneous tissue 690-698, List of ICD-9 codes - other diseases of skin and subcutaneous tissue 700-709, List of ICD-9 codes - 13. Diseases of the musculoskeletal system and connective tissue 710-739, List of ICD-9 codes - arthropathies and related disorders 710-719, List of ICD-9 codes - dorsopathies 720-724, List of ICD-9 codes - rheumatism excluding the back 725-729, List of ICD-9 codes - osteopathies chondropathies and acquired musculoskeletal deformities 730-739, List of ICD-9 codes - 14. Congenital anomalies 740-759, List of ICD-9 codes - congenital anomalies 740-759, List of ICD-9 codes - 15. Certain conditions originating in the perinatal period 760-779, List of ICD-9 codes - maternal causes of perinatal morbidity and mortality 760-763, List of ICD-9 codes - other conditions originating in the perinatal period 764-779, List of ICD-9 codes - 16. Symptoms signs and ill-defined conditions 780-799, List of ICD-9 codes - symptoms 780-789, List of ICD-9 codes - nonspecific abnormal findings 790-796, List of ICD-9 codes - ill-defined and unknown causes of morbidity and mortality 797-799, List of ICD-9 codes - 17. Injury and poisoning 800-999, List of ICD-9 codes - fracture of skull 800-804, List of ICD-9 codes - fracture of neck and trunk 805-809, List of ICD-9 codes - fracture of upper limb 810-819, List of ICD-9 codes - fracture of lower limb 820-829, List of ICD-9 codes - dislocation 830-839, List of ICD-9 codes - sprains and strains of joints and adjacent muscles 840-848, List of ICD-9 codes - intracranial injury excluding those with skull fracture 850-854, List of ICD-9 codes - internal injury of thorax abdomen and pelvis 860-869, List of ICD-9 codes - open wound of head neck and trunk 870-879, List of ICD-9 codes - open wound 870-897, List of ICD-9 codes - open wound of upper limb 880-887, List of ICD-9 codes - open wound of lower limb 890-897, List of ICD-9 codes - injury to blood vessels 900-904, List of ICD-9 codes - late effects of injuries poisonings toxic effects and other external causes 905-909, List of ICD-9 codes - superficial injury 910-919, List of ICD-9 codes - contusion with intact skin surface 920-924, List of ICD-9 codes - crushing injury 925-929, List of ICD-9 codes - effects of foreign body entering through orifice 930-939, List of ICD-9 codes - burns 940-949, List of ICD-9 codes - injury to nerves and spinal cord 950-957, List of ICD-9 codes - certain traumatic complications and unspecified injuries 958-959, List of ICD-9 codes - poisoning by drugs medicinal and biological substances 960-979, List of ICD-9 codes - toxic effects of substances chiefly nonmedicinal as to source 980-989, List of ICD-9 codes - other and unspecified effects of external causes 990-995, List of ICD-9 codes - complications of surgical and medical care not elsewhere classified 996-999, List of ICD-9 codes - E section -- External causes of injury, List of ICD-9 codes - V codes -- Supplementary classification of factors influencing health status and contact with health services

Read more here: » List of ICD-9 codes: Encyclopedia II - List of ICD-9 codes - 13. Diseases of the musculoskeletal system and connective tissue 710-739

Symptoms include multiple motor and one or more vocal tics present at some time during the disorder although not necessarily simultaneously; the occurrence of tics many times a day (usually in bouts) nearly every day or intermittently throughout a span of more than one year; the periodic change in the number, frequency, type and location of the tics, and in the waxing and waning of their severity; symptoms disappearing for weeks or mon ...

See also:

Tourette syndrome, Tourette syndrome - Symptoms, Tourette syndrome - Diagnosis, Tourette syndrome - Treatment, Tourette syndrome - Genetics, Tourette syndrome - Famous People With Tourette's, Tourette syndrome - References in the Entertainment Industry, Tourette syndrome - In fiction, Tourette syndrome - On the Internet, Tourette syndrome - In Music

Read more here: » Tourette syndrome: Encyclopedia II - Tourette syndrome - Symptoms

The many Marranos (in the Balearic Islands, Chuetas), who publicly professed Catholicism but privately adhered to Judaism during the Spanish Inquisition, and particularly after the Alhambra decree of 1492, are the most widely known crypto-Jews. Officially they were known as "New Christians," and there was considerable legislation directed against them in both Spain and Portugal and in their colonies, the chief activity of the ...

See also:

Crypto-Judaism, Crypto-Judaism - Europe, Crypto-Judaism - Chuetas, Crypto-Judaism - North America, Crypto-Judaism - Central South America and Caribbean

Read more here: » Crypto-Judaism: Encyclopedia II - Crypto-Judaism - Europe

Many species; see text and classification Birch is the name of any tree of the genus Betula, in the family Betulaceae, closely related to the beech/oak family, Fagaceae. These are generally small to medium-size trees or shrubs, mostly of northern temperate climates. The simple leaves may be toothed or lobed. The fruit is a small samara, although the wings may be obscure in some species. They differ from the alders (Alnus, the other genus in the family) in that the female catkins are not woody and disintegrate at maturity, falling apart to release the seeds, unli ...

Including:

• Birch - Species
• Birch - Uses

Read more here: » Birch: Encyclopedia - Birch

Although not the case in every culture, most religious practices contain taboos or fetishes in regard to sex, sex organs and the reproductive process. History of sex - Judaism. In Jewish law, sex is not considered shameful, sinful or obscene. Sex is considered a private and holy act between a husband and wife. Sex is not a necessary evil for the sole purpose of procreation. However, the residue of sex (as with any lost bodily fluid) was considered ritual ...

See also:

History of sex, History of sex - Sources, History of sex - Reproduction and cultural gender roles, History of sex - Sex in various cultures, History of sex - The West, History of sex - The East, History of sex - The sexual revolution, History of sex - Psychology and sex, History of sex - Same-sex relations, History of sex - Historiographic considerations, History of sex - The West, History of sex - Mesopotamia, History of sex - China, History of sex - Japan, History of sex - Wolfenden Report, History of sex - Psychiatry, History of sex - The sexual revolution, History of sex - Gay-rights movement, History of sex - Religion and sex, History of sex - Judaism, History of sex - Christianity, History of sex - Hinduism, History of sex - Politics of sex, History of sex - Technology and sex, History of sex - Recreational uses, History of sex - Natural birth control, History of sex - Artificial birth control, History of sex - Technology and infertility, History of sex - Pederasty, History of sex - Zoosexuality, History of sex - Prostitution, History of sex - Abortion, History of sex - Sexually transmitted diseases, History of sex - AIDS, History of sex - Syphilis, History of sex - Outside Reading, History of sex - Ancient Greece, History of sex - Homosexuality, History of sex - Sexual orientation

Read more here: » History of sex: Encyclopedia II - History of sex - Religion and sex

The XY sex-determination system is a well-known sex-determination system. It is found in human beings and other mammals. In the XY sex-determination system, females have two of the same kind of sex chromosome (XX), while males have two distinct sex chromosomes (XY). Some species (including humans) have a gene SRY on the Y chromosome that determines maleness; others (such as the fruit f ...

Read more here: » XY sex-determination system: Encyclopedia - XY sex-determination system

Please remove this notice after the article has been expanded. Details are on this talk page or at Wikipedia:Requests for expansion. Chromatin is found inside the nucleus of a cell. Chromatin is the structural building block of a chromosome and consists of a complex of DNA and protein in eukaryotic cells. It can be made visible by staining, hence its name, which literally means coloured material. The nucleic acids are generally in the form of double-stranded DNA - i.e. the famous DNA-d ...

Including:

• Chromatin - Introduction
• Chromatin - Levels of Chromatin Organization in Detail
• Chromatin - 1. Chromatin & Watson/Crick base pairing
• Chromatin - 2. Junction between B- and Z-DNA
• Chromatin - 3. The Nucleosome
• Chromatin - 4. Beads-On-A-String Chromatosome Array
• Chromatin - 5. Higher order Chromatin Structure
• Chromatin - 6. Territorial Organization of Chromatin in the Cell Nucleus
• Chromatin - Non-Histone Chromosomal Proteins
• Chromatin - Chromatin: Alternative Definitions
• Chromatin - History
• Chromatin - Nobel Prizes Related to Chromatin
• Chromatin - Reference

Read more here: » Chromatin: Encyclopedia - Chromatin

Chromatin - 1. Chromatin & Watson/Crick base pairing. Crick and Watson's famous structure of DNA (called B-DNA) is only one of three possible structural forms (Fig.2). For the C-N bond between a base and its sugar there are two different conformations. The anti-conformation occurs in all A- and B-DNAs as well as in Z-DNA where a Cytosine is present. In case of a Guanine Z-DNA takes the syn-conformation. The periodic change between a purine and pyrimidine along the strand of a Z-DNA accomplishes the alt ...

See also:

Chromatin, Chromatin - Introduction, Chromatin - Levels of Chromatin Organization in Detail, Chromatin - 1. Chromatin & Watson/Crick base pairing, Chromatin - 2. Junction between B- and Z-DNA, Chromatin - 3. The Nucleosome, Chromatin - 4. Beads-On-A-String Chromatosome Array, Chromatin - 5. Higher order Chromatin Structure, Chromatin - 6. Territorial Organization of Chromatin in the Cell Nucleus, Chromatin - Non-Histone Chromosomal Proteins, Chromatin - Chromatin: Alternative Definitions, Chromatin - History, Chromatin - Nobel Prizes Related to Chromatin, Chromatin - Reference

Read more here: » Chromatin: Encyclopedia II - Chromatin - Levels of Chromatin Organization in Detail

Aptenodytes Eudyptes Eudyptula Megadyptes Pygoscelis Spheniscus Penguins (order Sphenisciformes, family Spheniscidae) are an order of flightless birds living in the southern hemisphere. Penguin - Species and habitats. There are either 17 or 18 known species worldwide, depending on whether the two Eudyptula species are counted as distinct. Although all penguin species are native to the southern hemisphere, the ...

Including:

• Penguin - Species and habitats
• Penguin - Evolution
• Penguin - Anatomy
• Penguin - Mating Habits
• Penguin - Gallery
• Penguin - Classification
• Penguin - Name
• Penguin - Penguins in popular culture
• Penguin - Computing
• Penguin - Politics
• Penguin - Comics
• Penguin - Film
• Penguin - Literature
• Penguin - Sports mascots
• Penguin - Places
• Penguin - Audio CDs

Read more here: » Penguin: Encyclopedia - Penguin

Perception of color is achieved in mammals through color receptors containing pigments with different spectral sensitivities. In most Old World primates there are three types of color receptors (known as cone cells). This confers trichromatic color vision, so these primates, like humans, are known as trichromats. In the human eye, the cones are maximally receptive to short, medium, and long wavelengths of light and are therefore usually called S-, M-, and L-cones. L-cones are often referred to as the red receptor, but while the perception of red depends on this receptor, microspectrophotometry has shown that its peak sen ...

See also:

Color vision, Color vision - Color perception, Color vision - Cone cells in the human eye, Color vision - Chromatic adaptation

Read more here: » Color vision: Encyclopedia II - Color vision - Color perception

There is also a numerical pattern discovered by Anon Castillo using 2, 3, 5, and 23 and including 17, where you add one and two, then add an increasing number to each sum: 1 + 2 = 3 2 + 3 = 5 3 + 5 = 8 (or 2^3) 4 + 8 = 12 5 + 12 = 17 6 + 17 = 23 7 + 23 = 30 (or 2 * 3 * 5) This pattern (sequence A089071 in OEIS) consists of the Triangular numbers plus 2. ...

See also:

23 numerology, 23 numerology - A 23 enigma list, 23 numerology - 23 pattern

Read more here: » 23 numerology: Encyclopedia II - 23 numerology - 23 pattern

Colchicum extract was first described as a treatment for gout in De Materia Medica by Padanius Dioscorides in the first century CE. The colchicine alkaloid was first isolated in 1820 by the two French chemists P.S. Pelletier and J. Caventon (Pelletier PS, Caventon J. Ann. Chim. Phys. 1820;14:69). It was later identified as a tricyclic alkaloid and its pain relieving and anti-inflammatory effects for gout were linked t ...

See also:

Colchicine, Colchicine - History, Colchicine - Pharmacology, Colchicine - Biological function, Colchicine - Colchicine as medicine, Colchicine - Toxicity, Colchicine - Botanical use

Read more here: » Colchicine: Encyclopedia II - Colchicine - History