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NEET 2024
Exam
NEET
Year
2024
Subject
Botany
Chapter
Animal Kingdom

NEET 2024 · Botany · Animal Kingdom

Given below are two statements: One is labelled as Assertion A and...

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

Options

  1. AA\mathbf{A} is true but R\mathbf{R} is false.
  2. BA\mathbf{A} is false but R\mathbf{R} is true
  3. CBoth A\mathbf{A} and R\mathbf{R} are true and R\mathbf{R} is the correct explanation of A\mathbf{A}.
  4. DBoth A\mathbf{A} and R\mathbf{R} are true but R\mathbf{R} is NOT the correct explanation of A\mathbf{A}.

Correct answer

A. A\mathbf{A} is true but R\mathbf{R} is false.

Step-by-step solution

The correct answer is option (1) as Phylum Chordata is divided into three subphyla: Urochrodata, Cephalochordata and Vertebrata. The members of subphylum Vertebrata possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult. Thus, all vertebrates are chordates but all chordates are not vertebrates.
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