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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genotypes
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phenotypes
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Either A or B
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None of the above
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Detailed explanation-1: -Aa, DD, Bb, yy are all examples of genotypes. It is genetic makeup of an organism.
Detailed explanation-2: -Genotype examples Let’s look at a classic example – eye color. A gene encodes eye color. In this example, the allele is either brown, or blue, with one inherited from the mother, and the other inherited from the father. The brown allele is dominant (B), and the blue allele is recessive (b).
Detailed explanation-3: -The different types of genotypes are-homozygous recessive (pp), homozygous dominant (PP), and heterozygous (Pp). The homozygous dominant and the heterozygous genotypes show the same phenotypes.
Detailed explanation-4: -An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB.