Question

Which of the following statements on the reproduction of humans are correct?

I. All eggs fertilised externally.
II. One female egg can be fertilised by many sperms.
III. After fertilisation, the embryo will develop into a young baby.
IV. Males produce sperms and females produce eggs.

• A. I and II
• B. I and III
• C. III and IV
• D. II, III and IV

Answer 1

The correct option is C III and IV

• In humans, all eggs are fertilised internally and only one sperm can fertilise an egg.
• This is because, as soon as one sperm enters the egg, the entry of other sperm is prevented by a chemical barrier.