LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following genotypes is heterozygous?
A
Bb
B
BB
C
bb
D
B
Explanation: 

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.

Detailed explanation-2: -An individual that contains two copies of the same allele for a specific gene is homozygous. An individual that contains two different alleles of a gene is heterozygous. 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).

Detailed explanation-3: -So, the correct answer is D “Tt".

There is 1 question to complete.