Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Principles of Inheritance and Variation

Question:

Assertion :Mutation is defined as change in the genetic material.
Reason :A point mutation is a change of a single base pair in DNA.

Options:

A and R both are false .

A and R both are true and R is the correct explanation of the R .

A and R both are true but R is not the correct explanation of the R.

A is true but R is false .

Correct Answer:

A and R both are true but R is not the correct explanation of the R.

Explanation:

Mutation is a phenomenon which results in alteration of DNA sequences and consequently results in changes in the genotype and the phenotype of an organism. In addition to recombination, mutation is another phenomenon that leads to variation in DNA. A point mutation is a change of a single base pair in DNA .