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Q.

Statement-I: Fertilisation in cartilaginous fishes is usually internal.Statement-II: In male cartilaginous fishes, pectoral fins bear claspers.

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a

Statement-I is correct but Statement-II is incorrect

b

Statement-I is incorrect but Statement-II is correct

c

Both Statement-I and Statement-II are incorrect

d

Both Statement-I and Statement-II are correct

answer is A.

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Detailed Solution

In cartilaginous fishes, pelvic fins in males bear claspers which act as intromittent (copulatory) organs and hence fertilisation is internal.
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Statement-I: Fertilisation in cartilaginous fishes is usually internal.Statement-II: In male cartilaginous fishes, pectoral fins bear claspers.