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Read the following text and answer the f...

Read the following text and answer the following questions on the basis of the same:
Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen.
Aneuploidy which occurs due to loss of a complete homologous pair of chromosomes is :

A

Trisomy

B

Nullisomy

C

Tetrasomy

D

Euploidy

Text Solution

Verified by Experts

The correct Answer is:
B
Nullisomy - the loss of both pairs of homologous chromosomes, individuals are called nullisomic and their chromosomal composition is 2N-2.
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Read the following text and answer the following questions on the basis of the same: Mutation is sudden, discontinuous variation in genotype of an organism due to a change in its chromosomes and genes. Variation in DNA is a result of mutation. It is of three types : Gene mutation, chromosomal aberrations and gametic mutation. Gametic mutation is a change in chromosome number that brings effect on the phenotype, it is of two type - aneuploidy and euploidy. Mutation can be artificially produced by certain agents called mutagen. There are two major types of mutagens: physical and chemical mutagen. Which is the main category of mutation ?

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Gene mutation is :

Gene mutation means

Name three types of gene mutations.

A mutation results in change in

Gene mutations occurs in