Polyploidy

  • Donald P. Doolittle
Part of the Advanced Series in Agricultural Sciences book series (AGRICULTURAL, volume 16)

Abstract

A normal human gamete, sperm or ovum, carries a set of 23 chromosomes, each member of the set differing from all others in size, centromere placement, banding pattern, and gene content. When sperm and ovum unite, the resulting zygote will have two identical sets (except for the XY pair in males), 23 pairs of chromosomes. The gamete, with only one set of chromosomes, is said to be haploid (from the Greek haploos; single); the zygote, with its two sets, diploid.

Keywords

Recombination Haldane 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • Donald P. Doolittle
    • 1
  1. 1.Department of Animal SciencesPurdue UniversityWest LafayetteUSA

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