GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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25%
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50%
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75%
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100%
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Detailed explanation-1: -Question: 1. Black fur(B) in guinea pigs is dominant over white fur(b). Find the probability of a hybrid offspring in the cross: BB x Bb. 0% • 25% 50% (correct answer, your response) • 75% 100% .
Detailed explanation-2: -In guinea pigs, black fur (B) is dominant over white fur (b) and rough four ( R ) is domiant over smooth fur ( r ) . A cross between two Guinea pigs hybrid for both traits (BbRr x BbRr) produces some offsprings that have rough, black fur and some that have somooth, black fur.
Detailed explanation-3: -In guinea pigs, the allele for black coat color (B) is dominant over the allele for white coat color (b). In an ideal mouse population exhibiting Hardy-Weinberg equilibrium of 31 guinea pigs, 2 are homozygous dominant, 11 are heterozygous, and 18 are homozygous recessive.
Detailed explanation-4: -So the correct option would be ‘56%’.
Detailed explanation-5: -In guinea pigs, black coat color is a dominant trait and white is a recessive trait.