Dictionary of Human Evolution and Biology

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Male-specific Region Of The Y Chromosome

Major portion including the centromere of the human Y chromosome, which, although it contains segments that are homologous, is characterized by at least five inversions relative to the human X chromosome and is thus prevented from recombination with it. The older name for this region, the nonrecombining region of the human Y chromosome (NRY), was discarded when researchers found that the region is recombinogenic, i.e. recombination occurs between arms of nine large MSY palindromes, resulting in gene conversion.

Cf. pseudoautosomal region.

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