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sex in Biological Dictionary

X chromosome

...... X-chromosome or X chromosome ( ) n. The sex chromosome associated with female ... in Y-chromosome or Y chromosome ( ) n. The sex chromosome associated with male ... The X ... more genes than the Y, which has its ... The sex chromosomes raise an interesting dilemma: ...

Sexual

... have a sexual ... A sexual problem means that sex is not satisfying or ... Certain medicines that ... behavior of a person who has an unusually intense sex drive or obsession with sex. sexual adj. Of, ... of sex, sexuality, the sexes, or the sex organs and their functions sexual harassment ...

Sex-linked

... sex linkage is the phenotypic expression of an allele that is related to the chromosomal sex of the individual. This mode of inheritance is ... ... Genes that are carried by either sex chromosome are said to be ...

Sex chromosome

... A sex -determination system is a biological system that ... sexual organisms have two sexes. In many cases, sex determination is genetic: males and females have ... alleles or even ... The XY sex -determination system is the ...

Sex chromosomes

... A sex -determination system is a biological system that ... sexual organisms have two sexes. In many cases, sex determination is genetic: males and females have ... alleles or even ... The XY sex -determination system is the ...

Sex cells

... not have a germ line set aside in ... sex cell n. A germ ... sex cells have only half the number of chromosomes that other cells ... sex cell unites with a female ...

Pseudoautosomal regions

...... The pseudoautosomal regions of the human sex chromosomes. Hum Genet. 1993;92:315–324. ... ... of the pseudoautosomal regions of human sex chromosomes. The Human Pseudoautosomal Regions ... The pseudoautosomal regions of the human sex chromosomes. ... ... in ...

Hermaphrodite

... a pussy! Hermaphrodite does a girl. 8 min sex rated 91% Shemale Hermafrodita Babeyondi ... Hermaphrodite Fucks a Guy. 9 min sex rated 87% sex Tranny Herma. 11 ...

Haploid Cell

... ... one set derived from each parent), but sex cells (sperm and egg) are haploid . ... a ... ... in one parent's gamete ( haploid sex cell ) to produce 47 chromosome offspring ... chromosomes, but we also contain haploid sex cells with one set and half the number. ... ...

Haploid

... cells that compose the body are diploid, but sex cells (sperm and egg) are haploid . In ... haploid number. DNA (deoxyribonucleic acid ) ... sex cells are produced by the meiosis process and ... are often used in sexual reproduction. ... sex cells, however, are haploid – they have only ...

Barr body

... In those species in which sex is determined by the presence of the Y or W ... What does Barr body mean? ... Barr body sex chromatin. ... Barr body . Barr -Epstein ... Answers.com ... In those species in which sex is determined by the presence of the Y or W ...

Autosomes

... An autosome is a chromosome that is not a sex chromosome – that is to say there are an equal ... of autosomes , but the X and Y chromosomes are sex chromosomes. autosome ( ) n. A chromosome that is not a sex chromosome. autosomal au ' toso ' mal adj. ... ...

Autosome

... An autosome is a chromosome that is not a sex chromosome – that is to say there are an equal ... of autosomes, but the X and Y chromosomes are sex chromosomes. autosome ( ) n. A chromosome that is not a sex chromosome. autosomal au ' toso ' mal adj. ... ...

Androgens

...androgen... Information about Androgens , male sex hormone androgen ... Bioidentical Androgens ... ... Androgens are a group of chemically related sex ... androgen n. A steroid hormone, such as ... men, causing negative changes in their libido or sex drive, and physical wellbeing: testosterone, ...

Y chromosome

... to 1 in 3,000 males ... Y-chromosome or Y chromosome ( ) n. The sex chromosome associated with male characteristics in mammals, not ... Genetic Data, and ... The Y chromosome is one of the two sex chromosomes in humans and most other mammals. ... In humans, the Y ...

Reciprocal cross

... cross is a breeding experiment designed to test the role of parental sex on a given inheritance pattern . All parent organisms must be true ... cross . In genetics, a genetic cross of two genotypes in which sex influences the ... Definition of reciprocal from the Merriam-Webster ...

Lampbrush

... in the Online Dictionary. Meaning of lampbrush chromosome. ... XX and ZW sex lampbrush chromosomes in Rana rugosa females. ... ... by 24-48 h ... in Free online English dictionary. ... differences between XX and ZW sex lampbrush chromosomes in Rana rugosa females. ... Electron ...

Homologous chromosomes

... alike. ... Homologous chromosomes separating in the production of sex cells ... While homologous pairs of chromosomes are independently ... chromosomes and thus govern the same trait. ... All autosomes and the sex chromosomes of females occur in homologous pairs. ... Homologous ...

Gonads

... system and ultimately forms the testes Gonads are the true sex organs, generating reproductive gametes containing ... The absence of it ...... Men's gonads are called the testes, which produce sperm and male sex hormones. Abnormal function of the gonads can cause strong or weak ...

Dimorphism

... is the systematic difference in form between individuals of different sex in the same species. ... is also sexual dimorphism in the amount ... ... is the systematic difference in form between individuals of different sex ... also display extreme sexual dimorphism . ... Zoology ...

Bacterial conjugation

... Antibiotic resistance genes can be shared between bacteria through a sex pilus. Video Ref: www.learner.org Video Reff: www.learner.org Bacterial ... . ... 2. Bacterial Transformation. 3. Bacterial Conjugation -or- sex in a Blender. 4. Transduction ... 3. Bacterial Conjugation " Bacterial ...

Adaptive value

... business model that flexibly ... ... consider the adaptive value of sex in ... For the benefits of sex (that is, its adaptive value ), we consider three ... Rather, we focus ...

Vagina

... pregnancy, sexual health, and mature women ... The vagina also includes numerous tiny glands that make ... The vagina is the female internal sex organ that begins on the outside at the vaginal opening and extends about three to five inches inside, ending at the cervix. Objects placed in ...

Uterus

... The uterus is a major female hormone-responsive reproductive sex organ of most mammals, including humans. It is within the uterus that the foetus develops during gestation. The term uterus is used ...

Syngamy

... syngamy or the fusion of two different gametes. ... fit than themselves when syngamy results in recessive homozygotes. ... ... anatomy and sex lives (they don't have syngamy or meiosis or even true mitosis) ... Without water, algal syngamy is impossible, and gametes and embryos have ...

Synapse

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Spermatogenesis

... and spermatogenesis . ... Spermatogenesis is the process of producing sperm with half the number of ... Spermatogenesis occurs in medullary sex cords which are called seminiferous ... Definition of spermatogenesis from the Merriam-Webster Online Dictionary with audio pronunciations, ...

Sperm cells

... up only about 3% of the volume of semen, a fluid ... Mature sperm cells are about 0.05 millimetres long, and are made up of a head, ... The sex cells , sperm and ova, are produced by meiosis in special tissues of male ... The number of sperm cells produced can be significantly ...

Sequence similarity

... algorithm. ScanPS (EBI) ... ... one example of homology. In evolutionary biology , homology refers to any similarity between ... sex chromosomes have a shorter region of sequence similarity . ... for correcting similarity scores for library- sequence length was evaluated ...

Sequential Epitope

... - competent - complementary - conformational epitope - congenital ... tagged site - sequential epitope - severe combined immunodeficiency - sex ... ... differs markedly from T cell epitope spreading that follows a sequential cascade. ... They further demonstrate that the epitope ...

Segregation

... the practice of ... De jure segregation means racial separation forced by ... Information about segregation in the free online English ... sex segregation , purdah - the traditional Hindu or Muslim system of keeping women secluded ... Exhibition Overview: On May 17, l954, the Supreme ...

Secondary oocyte

... ... Encyclopedia article of oocyte at Reference.com compiled from comprehensive ... The only normal human type of secondary oocyte has sex chromosomes 23,X (where ... ...

Recessive

... Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. Sex-linked diseases are inherited through one of the sex chromosomes -- the X or ... Autosomal recessive . Chromosome. Gene. Genetic counseling and prenatal diagnosis ... ... recessive ... Autosomal ...

Pollen grain

... transfer of pollen grains from the male structure of a plant to the ... The pollen grains contain cells that will develop into male sex cells, or sperm. ... The pollen grain with its hard coat protects the sperm cells during the process ... The smallest pollen grain , ...

Oxygen

... shallow decompression stops at the end ... Madeline Foster (Maura Tierney) is an NYPD detective with a drinking problem and a penchant for rough sex in this police thriller that has her investigating ... Oxygen (IPA: /ˈɒksidʒən/) is a chemical element with the chemical symbol O and ... At ...

Nutrition

... nutrition , vegan, definition, ... Learn about nutrition , diet and healthy eating with our tips. ... 6 Nutrition Strategies for a Stronger sex Drive ... More On Nutrition . Quiz: What's Your ... The American Dietetic Association is the world's largest organization of food and nutrition ...

Multigenic disorder

... and ordinary mood swings? ... Numerous genetic variations have been shown to affect disease ... complex multigenic disorders with considerable sex differences in frequency and presentation. ... Multigenic disorders are the next great frontier of medical genetics, but ... is one of the few ...

MtDNA

... the area of molecular genealogy Tuesday, I referred to mtDNA and sperm evolution. ... There has been recent interest in the coinheritance of sex chromosomes and mtDNA . ... ...

Monoecious

... monoecious cucumber is very popular, and there are commercial ... Therefore, a selectable marker is needed to enhance breeding of monoecious sex phenotypes. ... monoecious . adjective (Gr. monos: single; oikos: house) Describing plant species ... examples of monoecious plants are ...

Mendelian inheritance

... ... The premise in autosomal dominant inheritance is that an individual who carries ... Mendelian inheritance . Alleles: What are they? sex ... Online Mendelian Inheritance in Man: a professional physician's reference on inherited diseases ... Principles of Mendelian Inheritance ...
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