Question

How many types of gametes can be produced if a plant has the following genotype
Aa Bb Cc Dd Ee.
A) 16
B) 32
C) 64
D) 84

Answer 1

Hint:The number of heterozygous alleles determines the number of gametes formed from the genotypes. In case of homozygous alleles, only one gamete is formed from a single genotype.

Complete answer:
For finding out the number of gametes, let's have a detailed look at the given genotype.
Aa Bb Cc Dd Ee
One of the simplest methods of finding out the number of gametes, is the formula ${{2}^{n}}$ , where n is the total number of heterozygous alleles present. During gametogenesis, the alleles are separated and only one type of allele of a particular gene can be present within the gametes. Here, the number of heterozygous alleles is 5 (n = 5). Then, the gametes produced will be
$\Rightarrow 2\times 2\times 2\times 2\times 2=32$
Option B: Number of gametes produced from the given genotype is 32. Therefore, this is the correct option.

Thus, the correct answer is option (B) 32

Additional information: Some differences between homozygous and heterozygous allele pairs:

Homozygous	Heterozygous
These allele pairs will only contain one type of allele. They could be either dominant or recessive.	Heterozygous allele pairs contain different allele pairs for a trait. They could be both dominant and recessive.
Repetition of the same traits can be obtained by self-fertilization over generations.	Different combinations of traits are obtained by self-fertilization over generations.
They show either homozygous dominant or homozygous recessive.	They show complete dominance, codominance or incomplete dominance.

Note: Other than homozygous and heterozygous allele pairs, there are:
i) Hemizygous - If one allele is missing, it is called hemizygous.
ii) Nullizygous - if both alleles are missing, it is called nullizygous