BiologyMorgan intercrossed  F1 progeny of Drosophila. He found thata) The two genes did not segregate independently and the F2 ratio deviated from 9 : 3 : 3 : 1 ratiob) Genes were located on X chromosomec) When two genes are situated on same chromosome, the proportion of parental gene combination is much higher than non parental type due to linkage

Morgan intercrossed  F1 progeny of Drosophila. He found that

a) The two genes did not segregate independently and the F2 ratio deviated from 9 : 3 : 3 : 1 ratio

b) Genes were located on X chromosome

c) When two genes are situated on same chromosome, the proportion of parental gene combination is much higher than non parental type due to linkage

  1. A

    Only a correct

  2. B

    Only b correct

  3. C

    Only b, c correct

  4. D

    a, b and c are correct

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    Solution:

     The two genes did not segregate independently and the F2 ratio deviated from 9 : 3 : 3 : 1 ratio in Morgan experiments on Drosophila. Genes that Morgan studies were located on X chromosome. When two genes are situated on same chromosome, the proportion of parental gene combination is much higher than non parental type due to linkage.

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