OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bb
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bb
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BB
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None of the above
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Detailed explanation-1: -An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.
Detailed explanation-2: -An individual that contains two different alleles of a gene is heterozygous. Examples. A cow that has two alleles for a red coat is homozygous (bb). A bull with two alleles for a black coat is homozygous (BB). A calf that has one allele for red coat color and one allele for black coat color is heterozygous (Bb).
Detailed explanation-3: -TT represents a homozygous dominant genotype. tt represents a homozygous recessive genotype.
Detailed explanation-4: -The notation tt means the homozygous condition, wherein the homologous pair contains same alleles of a gene.