Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Sympatric speciation occurs in a single population without geographical isolation.
Reason (R): The formation of species is due to reproductive isolation and mutation.
In light of the above statements, choose the correct answer from the options given below.

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

Hint:

Judge whether each statement is true and then whether the reason explains why no geographical isolation is needed.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Sympatric speciation forms new species from a single population in the same area, without a geographical barrier.

Step 2: Assertion (A)
This is the correct definition, so A is true.

Step 3: Reason (R)
Species formation does need reproductive isolation and genetic differences from mutation (for example polyploidy), so R is true in general.

Step 4: Does R explain A?
R states what is needed for any speciation. It does not explain why geographical isolation is absent in the sympatric case.

Final Answer:
Both are true but R does not explain A. \[ \boxed{\text{(B) }\text{Both (A) and (R) are true but (R) is NOT the correct explanation of (A).}} \]