Definitions for y chromosome

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

Princeton's WordNet

  1. Y chromosome(noun)

    the sex chromosome that is carried by men

    "human males normally have one X chromosome and one Y chromosome"

Wiktionary

  1. Y chromosome(Noun)

    A mammalian sex chromosome, occurring only in male cells. Cells of females have a pair of X chromosomes while cells of males have an X and a Y.

Freebase

  1. Y chromosome

    The Y chromosome is one of two sex-determining chromosomes in mammals, including humans. In mammals, the Y chromosome contains the gene SRY, which triggers testicle development if present. The human Y chromosome is composed of about 50 million base pairs. DNA in the Y chromosome is passed from father to son, and Y-DNA analysis may thus be used in genealogical research. With a 30% difference between humans and chimpanzees, the Y chromosome is one of the fastest evolving parts of the human genome.

U.S. National Library of Medicine

  1. Y Chromosome

    The male sex chromosome, being the differential sex chromosome carried by half the male gametes and none of the female gametes in humans and in some other male-heterogametic species in which the homologue of the X chromosome has been retained.

Sample Sentences & Example Usage

  1. Sarah Palin:

    I don't think because the child has one extra chromosome they should be able to snuff that life out.

  2. Jan Dumanski:

    There is a correlation between a common and avoidable risk factor, that is smoking, and the most common human mutation -- loss of the Y chromosome, this ... may in part explain why men in general have a shorter life span than women and why smoking is more dangerous for men.

  3. Arthur Georges:

    We used a bacterial artificial chromosome library to generate and verify sex specific sequence and probes that were important to determine the underlying sex of individuals, a BAC library is constructed by cutting up the dragon DNA, the whole genome, and inserting the fragments into bacterial colonies, one fragment per colony, so you can pull particular dragon sequence out at will.

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