Allosome

//ˈal.əˌsəʊm// noun

Definitions

Noun
  1. 1
    A sex chromosome that differs from an ordinary autosome in form, size, or behaviour.

    "The human sex chromosomes are a typical pair of allosomes. The X chromosome is present in the ovum, while either X or Y chromosomes can be present in sperm."

Etymology

From allo- + -some.

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