IGNOU MZO 002 2026 - Explain human gene mapping by linkage analysis in pedigrees using nail

Question

Explain human gene mapping by linkage analysis in pedigrees using nail-patella syndrome and ABO blood group example, including recombination frequency calculation.

29 Jan 2026

Answer :

Word Count : 270

Human gene mapping by linkage analysis involves studying the co-inheritance of genes or genetic markers within families to determine their relative positions on chromosomes. This method is based on the principle that genes located close together tend to be inherited together because crossing over between them occurs less frequently during meiosis. Pedigree analysis is central to this approach, as it allows observation

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