Definitions for x chromosome

This page provides all possible meanings and translations of the word x chromosome

Random House Webster's College Dictionary

X chromosome(n.)

  1. a sex chromosome of humans and most mammals that determines femaleness when paired with anotherX chromosome and that occurs singly in males.

    Category: Genetics

    Ref: Compare Y chromosome.

Origin of X chromosome:


Princeton's WordNet

  1. X chromosome(noun)

    the sex chromosome that is present in both sexes: singly in males and doubly in females

    "human females normally have two X chromosomes"


  1. X chromosome(Noun)

    A mammalian sex chromosome. Cells of females have a pair of X chromosomes while cells of males have an X and a Y.


  1. X chromosome

    The X chromosome is one of the two sex-determining chromosomes in many animal species, including mammals, and is found in both males and females. It is a part of the XY sex-determination system and X0 sex-determination system. The X chromosome was named for its unique properties by early researchers, which resulted in the naming of its counterpart Y chromosome, for the next letter in the alphabet, after it was discovered later.

U.S. National Library of Medicine

  1. X Chromosome

    The female sex chromosome, being the differential sex chromosome carried by half the male gametes and all female gametes in human and other male-heterogametic species.


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