Question

If a genotype consists of different types of alleles, it is called __________.
A) Homozygous
B) Heterozygous
C) Monoallelic
D) Monoallelic

Answer 1

The individual’s collection of genes is called a ‘genotype’.When the information is encoded in the DNA of the genes, it is used to make protein and RNA molecules.On the other hand, a variant form of a gene is known as an ‘allele’.Humans are called diploid organisms because they are composed of two alleles at each genetic locus, where one allele is inherited from each parent.

Complete answer:

Homozygous is a type of genetic condition in which an individual inherits the same alleles for a definite gene from both the parents.In other words, if the two alleles are identical, then the person is homozygous for that particular gene.
In contrast to ‘Homozygous’, the ‘Heterozygous’ is a condition when there are two different alleles for a particular gene.Humans and other diploid organisms have two copies of the same gene.It can be monozygotic or heterozygotic.
When only one of the two copies of a gene are active and the other is silent, then that gene expression is called monoallelic.Monoallelic expression is basically initiated early in the development of an organism.
The ‘uniallelic’ also depicts when only one allele is present.It is more used in the case of mutations where in contrast to ‘biallelic’ mutations it is generally referred to.
According to the above discussion as enlisted stepwise, we can say that the right option is ‘Heterozygous’.

Hence, the option (B) is the correct answer.

Note: Through heterozygous genotype, it can be shown how the traits are expressed.Here two different alleles interact with each other.The dominant allele is expressed more strongly and the other is set as ‘recessive’.Most importantly, the recessive allele is typically masked by the dominant allele.