HEREDITY
INCOMPLETE DOMINANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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0%
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25%
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50%
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100%
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Detailed explanation-1: -Body hair color is a qualitative trait that is regulated by one or several pairs of genes or alleles. Inheritance of the color of feathers in chickens is influenced by genotype I which carries the color of white feathers, which are dominant and genotype ii which carries the color of feathers which are recessive.
Detailed explanation-2: -If the brown male had been BB, then all offspring would have been Bb and all brown. However, if the male is Bb as above and you perform a testcross, 50% of all offspring should have the bb genotype and a white phenotype.
Detailed explanation-3: -Phenotype. The physical appearance of the genotype is called the phenotype. For example, children with the genotypes ‘BB’ and ‘Bb’ have brown-eye phenotypes, whereas a child with two blue-eye alleles and the genotype ‘bb’ has blue eyes and a blue-eye phenotype.