• Thumbnail for Heterogametic sex
    The heterogametic sex (or digametic sex) is the sex of a species where an individual's gametes have non-matching sex chromosomes. In humans, the heterogametic...
    4 KB (476 words) - 04:20, 30 August 2023
  • Thumbnail for XY sex-determination system
    are called the homogametic sex. Males have two different kinds of sex chromosomes (XY), and are called the heterogametic sex. In humans, the presence of...
    29 KB (3,396 words) - 04:43, 3 June 2024
  • Thumbnail for ZW sex-determination system
    the sex of the offspring. Males are the homogametic sex (ZZ), while females are the heterogametic sex (ZW). The Z chromosome is larger and has more genes...
    20 KB (2,331 words) - 03:09, 4 June 2024
  • Thumbnail for Sex
    Sex is the trait that determines whether a sexually reproducing organism produces male or female gametes. During sexual reproduction, a male and a female...
    63 KB (7,043 words) - 06:08, 3 June 2024
  • Thumbnail for Sex-chromosome dosage compensation
    or Z specific genes in the heterogametic sex to the same levels observed in the ancestor prior to the evolution of the sex chromosome. Other lineages...
    57 KB (7,645 words) - 12:59, 27 March 2024
  • Thumbnail for Haldane's rule
    only one sex is inviable or sterile, that sex is more likely to be the heterogametic sex. The heterogametic sex is the one with two different sex chromosomes;...
    12 KB (1,332 words) - 18:07, 15 January 2024
  • Thumbnail for Sex chromosome
    Sex chromosomes (also referred to as allosomes, heterotypical chromosome, gonosomes, heterochromosomes, or idiochromosomes) are chromosomes that carry...
    30 KB (3,662 words) - 13:02, 12 May 2024
  • Thumbnail for Biological rules
    species hybrid only one sex is sterile, that sex is usually the heterogametic sex. The heterogametic sex is the one with two different sex chromosomes; in mammals...
    29 KB (3,106 words) - 03:29, 13 October 2023
  • Thumbnail for Sexual dimorphism
    Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, particularly characteristics not directly...
    106 KB (12,410 words) - 00:58, 30 May 2024
  • Thumbnail for Germ cell
    Germ cell (redirect from Sex cells)
    and Sex Determination in Mammals". Molecular Biology of the Cell (4th . ed.). Garland Science. Spiller C, Koopman P, Bowles J (November 2017). "Sex Determination...
    31 KB (4,039 words) - 12:27, 27 May 2024
  • Thumbnail for Hardy–Weinberg principle
    unequal in the two sexes [e.g., XX females and XY males, as in humans], f′(a) in the heterogametic sex 'chases' f(a) in the homogametic sex of the previous...
    40 KB (5,950 words) - 17:28, 27 November 2023
  • Thumbnail for Kinosternidae
    Turtles and Aves Share the Same Origin of Sex Chromosomes but Evolved Different Types of Heterogametic Sex Determination". PLOS ONE. 9 (8): e105315. Bibcode:2014PLoSO...
    11 KB (1,085 words) - 01:48, 1 May 2024
  • Thumbnail for Virilization
    Virilization is a medical term commonly used in three medical and biology of sex contexts: prenatal biological sexual differentiation, the postnatal changes...
    8 KB (895 words) - 14:51, 13 May 2024
  • Thumbnail for Delayed feathering in chickens
    two, contrarily to what happens in humans, where the male is the heterogametic sex, as occurs in most diploid species. k+ carrier females are always...
    14 KB (1,766 words) - 21:42, 24 March 2024
  • Thumbnail for Gamete
    sexually. Gametes are an organism's reproductive cells, also referred to as sex cells. The name gamete was introduced by the German cytologist Eduard Strasburger...
    12 KB (1,348 words) - 05:41, 19 May 2024
  • Thumbnail for XO sex-determination system
    The XO sex-determination system (sometimes referred to as X0 sex-determination system) is a system that some species of insects, arachnids, and mammals...
    8 KB (805 words) - 20:18, 24 March 2024
  • Thumbnail for Human genetics
    and are called the homogametic sex. Males have two distinct sex chromosomes (XY), and are called the heterogametic sex. Sex linkage is the phenotypic expression...
    29 KB (2,444 words) - 02:46, 19 April 2024
  • their pathogen susceptibility and uneven sex ratio. Cynoglossus semilaevis have a female heterogametic sex-determination system, with females being ZW...
    10 KB (1,120 words) - 09:26, 18 August 2023
  • Thumbnail for Intersex
    several underlying genetic conditions that cause abnormal development of sex characteristics including chromosome patterns, gonads, or genitals that,...
    153 KB (14,290 words) - 00:11, 1 June 2024
  • Thumbnail for J. B. S. Haldane
    the X chromosome, and codified Haldane's rule on sterility in the heterogametic sex of hybrids in species. He correctly proposed that sickle-cell disease...
    102 KB (11,627 words) - 05:25, 4 June 2024
  • Thumbnail for Human reproduction
    on jurisdictions. Even for minors above the age of consent, comprehensive sex education advises both consenting parties to use contraception to avoid both...
    20 KB (2,210 words) - 02:36, 15 May 2024
  • Thumbnail for Temperature-dependent sex determination
    heterogametic mechanism of sex determination". Heredity. 39 (1): 1–14. doi:10.1038/hdy.1977.38. PMID 268319. Charnov EL, Bull J (1977). "When is sex environmentally...
    33 KB (3,823 words) - 20:27, 14 March 2024
  • Thumbnail for Dwarfism in chickens
    birds, female is the heterogametic sex, that is, it has one Z and one W sexual chromosome (genotype ZW), while male (the homogametic sex) carries two Z chromosomes...
    20 KB (3,001 words) - 00:03, 15 October 2023
  • likely to be the heterogametic sex (i.e. the one with two different sex chromosomes). haplodiploidy A sex-determination system in which the sex of an individual...
    144 KB (15,393 words) - 06:54, 23 February 2024
  • Thumbnail for Zygosity
    observed when one copy of a gene is deleted, or, in the heterogametic sex, when a gene is located on a sex chromosome. Hemizygosity is not the same as haploinsufficiency...
    16 KB (2,013 words) - 20:22, 24 March 2024
  • Thumbnail for Liger
    animals whose sex is determined by sex chromosomes, if one of the two sexes is absent, rare or sterile, it will be the heterogametic sex. Male ligers are...
    20 KB (2,341 words) - 15:04, 19 February 2024
  • that is not produced, is rare or is sterile is the heterozygous (or heterogametic) sex. In mammals, at least, there is growing evidence to suggest that this...
    75 KB (9,048 words) - 22:27, 17 March 2024
  • Thumbnail for Mechanics of human sexuality
    The mechanics of human sexuality or mechanics of sex, or more formally the biomechanics of human sexuality, is the study of the mechanics related to human...
    7 KB (672 words) - 01:21, 20 November 2023
  • homozygous to show a recessive trait. The heterogametic sex (males in humans) only receives one of each sex chromosome and will therefore show recessive...
    3 KB (428 words) - 16:30, 30 July 2023
  • Thumbnail for Genetic disorder
    conditions may only be transmitted from the heterogametic sex (e.g. male humans) to offspring of the same sex. More simply, this means that Y-linked disorders...
    36 KB (3,582 words) - 01:38, 19 May 2024