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Question

Mating an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called

A
reciprocal cross
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B
test cross
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C
back cross
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D
dihybrid cross
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Solution

The correct option is B test cross
Test cross: It is cross between an organism and the recessive parent in order to determine whether it is homozygous or heterozygous for a character under consideration.

Reciprocal cross: It is a cross between a male of one strain and a female of another, and vice versa. It is used to determine if the trait is sex linked.

Back cross: It is a crossing of a hybrid with one of its parents in order to achieve offspring which is closer to that of the parent.

Dihybrid cross: It is a cross between two different genes that differ in two observed traits.

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