HEREDITY
THE PEDIGREE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Of 12 hamsters just born, 9 have brown fur and 3 have white fur. The trait for white fur is considered to be ____
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recessive
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weak
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strong
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dominant
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Explanation:
Detailed explanation-1: -Subtract the percent chance for the dominant trait from 100 to get the percent chance that an offspring will display the recessive trait. For example, 100-50 = 50, so there is a 50 percent chance of an offspring having blue eyes.
Detailed explanation-2: -Offspring homozygous for both recessive traits There is only one of 16 possible combinations with this genotype. The predicted fraction is therefore 1/16.
Detailed explanation-3: -Because the genotypes Aa and AA both result in the grey fur phenotype, there is a 75% probability that the offspring will have grey fur. Because the genotype aa results in the white fur phenotype, there is a 25% probability that the offspring will have white fur.
There is 1 question to complete.