chromosome : Idioms & Phrases


acentric chromosome

  • noun a chromosome lacking a centromere
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acrocentric chromosome

  • noun a chromosome with the centromere near one end so that one chromosomal arm is short and one is long
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chromosome mapping

  • noun (genetics) the process of locating genes on a chromosome
    mapping.
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metacentric chromosome

  • noun a chromosome having two equal arms because the centromere is in median position
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sex chromosome

  • noun (genetics) a chromosome that determines the sex of an individual
    • mammals normally have two sex chromosomes
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somatic chromosome

  • noun any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa
    autosome.
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telocentric chromosome

  • noun a chromosome like a straight rod with the centromere in terminal position
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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
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y chromosome

  • noun the sex chromosome that is carried by men
    • human males normally have one X chromosome and one Y chromosome
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