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In which cross, the homozygosity is mainly possible?

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Male ass x Female horse

Bull x Cow of Jersey breed

Marino ram x Bikaneri ewe

Jersey Bull x Sahiwal cow

answer is B.

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Detailed Solution

Inbreeding (mating within same breed) increases homozygosity. So, mating between Jersey breed bull and cow increases homozygosity.

Mating between Marino ram and Bikaneri ewe is crossbreeding.

Mating between Jersey bull and Sahiwal cow is crossbreeding.

Mating between male donkey and female horse is interspecific hybridisation.

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