sex chromosomes

English - Turkish

Definition of sex chromosomes in English Turkish dictionary: (Pisikoloji, Ruhbilim) cinsiyet kromozomları
sex chromosome: seks kromozomu
sex chromosome: cinsiyet kromozomu

English - English

Definition of sex chromosomes in English English dictionary: plural form of sex chromosome
sex chromosome: either of a pair of chromosomes (in most animals and plants) whose combination determines the sexual characteristics of an individual
sex chromosome: Either of a pair of chromosomes, usually designated X or Y, in the germ cells of most animals and some plants, that combine to determine the sex and sex-linked characteristics of an individual, with XX resulting in a female and XY in a male in mammals. Either of a pair of chromosomes that determine whether an individual is male or female. The sex chromosomes of mammals are designated X and Y; in humans, they constitute one pair of the total 23 pairs of chromosomes. Individuals possessing two X chromosomes (XX) are female; those having one X and one Y chromosome (XY) are male. The X chromosome is larger and carries more genetic information than the Y. Traits controlled only by genes found on the X chromosome (e.g., hemophilia, red-green colour blindness) are said to be sex-linked. Sex-linked traits occur far more frequently in males than in females, since a male inheriting an allele for a recessive (see recessiveness) trait on the X chromosome lacks a corresponding allele on the Y chromosome that might counteract its effects. Several disorders are associated with an abnormal number of sex chromosomes, including Turner syndrome and Klinefelter syndrome
sex chromosome: {i} chromosome that determines the sex of a creature
sex chromosome: (genetics) a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes
sex chromosome: {i} heterochromosome