Homologous chromosome

As this karyotype displays a diploid human cell contains 22 pairs of homologous chromosomes and 2 sex chromosomes. The cell has two sets of each chromosome; one of the pair is derived from the mother and the other from the father. The maternal and paternal chromosomes in a homologous pair have the same genes at the same locus, but possibly different alleles.

A pair of homologous chromosomes, or homologs, is a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization. Homologs have the same genes in the same loci, where they provide points along each chromosome that enable a pair of chromosomes to align correctly with each other before separating during meiosis.[1] This is the basis for Mendelian inheritance, which characterizes inheritance patterns of genetic material from an organism to its offspring parent developmental cell at the given time and area.[2]

  1. ^ Homologous chromosomes. 2. Philadelphia: Saunders/Elsevier. 2008. pp. 815, 821–822. ISBN 978-1-4160-2255-8. Archived from the original on 2015-11-29. Retrieved 2013-11-01.
  2. ^ Cite error: The named reference Griffiths was invoked but never defined (see the help page).

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