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MHT CET Medical202625 April 2026Evening ShiftBiologyPrinciples of Inheritance and VariationActual

The number of linkage groups of a particular species corresponds to its _________ number of chromosomes.

Options

  1. Ahaploid
  2. Bdiploid
  3. Ctriploid
  4. Dtetraploid

Correct answer

A. haploid

Step-by-step solution

All the genes located on a single chromosome are inherited together and form one linkage group. Since homologous chromosomes possess identical loci for genes, they constitute the same linkage group. Therefore, the number of linkage groups in a species is equal to its haploid number of chromosomes ( n ). For example, in humans ( 2n = 46 ), the haploid number is 23 , so there are 23 linkage groups. In Drosophila ( 2n = 8 ), the haploid number is 4 , so there are 4 linkage groups. Answer: haploid

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