Question

A few statements with regard to sexual reproduction are given below.
(i) Sexual reproduction does not always require two individuals.
(ii) Sexual reproduction generally involves gametic fusion.
(iii) Meiosis never occurs during sexual reproduction.
(iv) External fertilisation is a rule during sexual reproduction.

Choose the correct statements from the options below.

• A. (i) and (iv)
• B. (i) and (ii)
• C. (ii) and (iii)
• D. (i) and (iv)

Answer 1

The correct option is B (i) and (ii)

(i) Sexual reproduction does not require two individuals because the fusion of two gametes released from the same plant or organisms can take place.

(ii) Sexual reproduction is a process where gametic fusion is present because it takes place between two gametes of different sexes.

(iii) Meiosis occurs during sexual reproduction when the plant body is diploid. In order to produce gametes and maintain constant number of chromosomes, gamete mother cell undergoes meiosis.

(iv) External fertilization need not take place in sexual reproduction. it can also be internal e.g., humans.

So, the correct option is (i) and (ii).