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NEET2013ZoologyPrinciples of Inheritance and VariationActual

Which of the following statements is not true of two genes that show 50 % recombination frequency?

Options

  1. Athe genes may be on different chromosomes
  2. Bthe genes are tightly linked
  3. Cthe genes show independent assortment
  4. Dif the genes are present on the same chromosome, they undergo more than one crossovers in every meiosis

Correct answer

B. the genes are tightly linked

Step-by-step solution

The tightly linked genes on chromosomes show 100 % parental types and 0 % recombinants. Two genes that undergo independent assortment indicated by a recombinant frequency of 50 % are either on non- homologous chromosomes are located far apart in a single chromosome. As the distance between two genes increases, crossover frequency increases. More recombinant gametes, fever parental gametes.

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