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sex chromosomes
 

Definitions from WordNet

Noun sex chromosome has 1 sense
  1. sex chromosome - (genetics) a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes"
    --1 is a kind of     chromosome
    --1 has particulars:
     X chromosome; XX; XXX; XXY; XY; XYY; Y chromosome

Definitions from the Web

Sex Chromosomes

Noun:

1. A pair of chromosomes that determine the sex of an individual, typically designated as X and Y in mammals.

Example sentence: The presence of two X chromosomes determines female sex, while the presence of one X and one Y chromosome determines male sex.

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