Question

Assertion (A): In reptiles, the temperature at which the fertilized eggs are kept decides the sex of the offspring.
Reason (R): Sex is not genetically determined in some animals.
In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, and Reason (R) is not the correct explanation of Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false.
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

In certain reptiles, sex determination is dependent on environmental factors like temperature, rather than on genetics.

Answer 1

The Correct Option is A

Assertion (A) is valid because temperature influences sex determination in numerous reptiles; incubation temperature dictates the sex of the offspring.
Reason (R) is also valid; in certain animals, such as reptiles, sex determination is environmental rather than genetic. 
Consequently, the correct response is option (1).