Target Exam

CUET

Subject

Biology

Chapter

Molecular Basis of Inheritance

Question:

Which of the following is a necessary trait for a molecule to function as genetic material?

Options:

It should be capable of expressing itself in the form of 'Mendelian characters.'

 It should be able to replicate itself.

It should allow for slow changes necessary for evolution.

All of these

Correct Answer:

All of these

Explanation:

The correct answer is Option (4)- All of these

It should be able to express itself in the form of "Mendelian character": This is true. Genetic material carries the information necessary for the expression of traits, including those that follow Mendelian principles of inheritance. Mendelian characters are traits that are controlled by single genes and exhibit predictable patterns of inheritance, which is facilitated by the presence of genetic material.

It should be able to generate its replica: This is true. Genetic material must be able to replicate itself accurately so that it can be passed on to subsequent generations. This is a fundamental characteristic of DNA, RNA, and other genetic molecules.

It should provide the scope for slow changes that are required for evolution: This is true. Genetic material must allow for variations and mutations over time to drive evolutionary processes. This variation provides the raw material for natural selection to act upon, leading to adaptation and evolution of species.