Bateson used the terms coupling and repulsion for linkage and crossing over. Name the correct parental or coupling type along with its cross over or repulsion.

Coupling AABB, aabb; Repulsion AABB, AAbb

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Coupling AAbb, aaBB; Repulsion AABB, aabb

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Coupling aaBB, aabb; Repulsion AABB, aabb

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Coupling AABB, aabb; Repulsion AAbb, aaBB

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Solution

The correct option is D Coupling AABB, aabb; Repulsion AAbb, aaBB
Coupling refers to the case where dominant alleles are on the same homologue chromosome and both recessive alleles are on the other homologue chromosome. Repulsion refers to the case where each homologous chromosome has one dominant and one recessive allele from the two genes.

So, the correct answer is 'Coupling AABB, aabb; Repulsion AAbb, aaBB'.

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Similar questions

Bateson used the terms coupling and repulsion for linkage and crossing over. Name the correct parental or coupling type along with its cross over or repulsion.

A) Coupling AABB, aabb ; Repulsion AABB, AAbb

B) Coupling AAbb, aaBB ; Repulsion AaBb, aabb

C) Coupling aaBB, aabb ; Repulsion AABB, aabb

D) Coupling AABB, aabb ; Repulsion AAbb, aaBB

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a² + ab(b + 1) + b³

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Q. aa _ b _ abb _ bb.

? a ?b ?abaa ?bab ?abb

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