HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A homozygous brown bunny is crossed with a homozygous black bunny. If black fur is a dominant trait, and brown is a recessive, what are the chances of getting a brown bunny?
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100 %
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0 %
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75 %
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25 %
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Explanation:
Detailed explanation-1: -Thus, the genotype of heterozygous rabbit will be Bb and that of homozygous recessive will be bb.
Detailed explanation-2: -So, one out of 9 black long fur progeny will be homozygous for both the genes.
Detailed explanation-3: -In rabbits, black skin (B) is dominant over brown skin (b) and short hair (S) is dominant over long hair (s). If a homozygous black skin, short-haired male is crossed with a homozygous brown skin, long-haired female, all F1 offspring are heterozygous black and short-haired.
Detailed explanation-4: -In rabbit, black skin (B) is dominant over brown skin (b), and short hair (S) is dominant over long hair (s). All F1 offsprings are heterozygous black-short haired.
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