noun
Z chromosome
Biology term for the sex chromosome found in birds, some reptiles, and other species where females are ZW and males are ZZ.
鳥類では、オスがＺ染色体を二本持つ。
In birds, males have two Z chromosomes.
General term for sex chromosomes; Z chromosome is one type of sex chromosome.
From English 'Z chromosome', where 'Z' is used to distinguish it from the X and Y chromosomes of the XY sex-determination system.