OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?
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50%
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0%
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25%
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100%
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Explanation:
Detailed explanation-1: -When a black feathered chicken (BB) mates with a white feathered chicken (WW) all of the offspring are covered with both black and white feathers (BW).
Detailed explanation-2: -A black chicken and a white chicken are crossed. What is the probability that they will have erminette chicks? W BW BW 100% of the offspring have genotype BW. This means that 100% of the offspring are erminette.
Detailed explanation-3: -Correct answer: Explanation: Codominance means that more than one type of dominant allele for the same gene is present. If both black and white fur are dominant, then heterozygous (Aa) offspring would be spotted with black and white.
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