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NEETZoologyPrinciples of Inheritance and Variation

What term did Morgan coin to describe the physical association of genes on a chromosome?

Options

  1. ARecombination
  2. BIndependent assortment
  3. CLinkage
  4. DSegregation

Correct answer

C. Linkage

Step-by-step solution

Morgan and his group knew that the genes were located on the X chromosome (Section 4.4) and saw quickly that when the two genes in a dihybrid cross were situated on the same chromosome, the proportion of parental gene combinations were much higher than the non-parental type. Morgan attributed this due to the physical association or linkage of the two genes and coined the term linkage to describe this physical association of genes on a chromosome and the term recombination to describe the generation of non-parental

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