Ncert Exercises & Solutions

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.

1. l and lV

2. l and ll

3. ll and lll

4. l and lV

(c)

Sexual reproduction involves formation of the male-female gametes either by the same individual (e,g., Taenia) or by different individuals of the opposite sex (e.g., rabbit).

These gametes fuse to form the zygote which develops to form the new organism. Meiosis (reduction division) occurs only during sexual reproduction to produce haploid gametes. It is internal fertilisation which occurs during sexual reproduction. In this type egg is formed inside the female body where they fuse with the male gamete.

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