Question

What genotype does a heterozygous individual have if the uppercase alphabet A denotes dominant gene and lowercase alphabet a denotes a recessive gene?
A. AA
B. aa
C. Aa
D. AAA

Answer 1

c. Aa

Heterozygous individuals have two different alleles of one gene.

Example: Bb

B is dominant. b is recessive.

Answer 2

Answer: Option C

Explanation: A diploid organism is the heterozygous at gene locus when the cells contains two different alleles of a gene.

The two alleles that is found at gene locus contains one wild type and one mutant allele.

These are represented by a Capital letter that represents the wild type and other letter is represented in lower case which shows the mutant type.

Example: Aa