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RE-NEET2024Zoology-Chordates

RE-NEET 2024 Zoology Vertebrates Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 11

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Members of subphylum vertebrates possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult.

Reason R: Thus all chordates are vertebrates not all vertebrates are chordates.

In the light of the above statements choose the correct answer from the option given below.

A

A is true but R is false.

B

A is false but R is true

C

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

D

Both A and R are true but R is NOT the correct explanation of A.

Correct Answer

Option A

Detailed Explanation

Assertion A is true as vertebrates possess a notochord during the embryonic stage. Reason R is false because not all chordates are vertebrates; some chordates do not develop a vertebral column.

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