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Sets of genes located on same chromosome are called :

  • A.Allotype
  • B.Isotype
  • C.Haplotype
  • D.Idiotype

Answer: C

Such a set of genes is a haplotype.

A haplotype is a combination of alleles at linked loci on the same chromosome, inherited together as a unit. The term is used especially for the MHC (HLA) genes, which each parent passes on as a block.

Allotype, isotype and idiotype describe antibody variation: isotypes are the different heavy-chain classes (IgG, IgM and so on), allotypes are allelic differences between individuals, and idiotypes are the unique antigen-binding regions of a particular antibody. None refers to genes grouped on a chromosome.

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