NEET Biology question

Bateson used the terms coupling and repulsion for linkage and crossing over. Name the correct parental combination of the coupling type, along with its cross-over (repulsion) combination.

(A)Coupling ; Repulsion
(B)Coupling ; Repulsion
(C)Coupling ; Repulsion
(D)Coupling ; Repulsion Correct

Answer: (D)

Solution

Bateson and Punnett (1906), working on sweet pea, described coupling as the tendency of two dominant alleles (or two recessive alleles) that entered from the same parent to stay together in gametes — i.e., parental genotypes and give the coupled gametic classes and . Repulsion refers to the

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Question ID VK-120199