Question

In sexual reproduction of algae fusion between one large, non-motile (static) female gamete and a smaller motile male gamete is termed as

• A. Isogamous
• B. Anisogamous
• C. Oogamous
• D. None of these

Answer 1

Answer: (C)

Oogamous

The fusion of similar motile gametes is known as isogamous.

The motile gametes taking part in fusion may either differ in size or physiological behaviour is known as anisogamous.

Oogamous is a condition of heterogamy where one gamete is large and nonmotile, while the other is small and motile. In sexual reproduction of algae fusion between one large, non-motile (static) female gamete and a smaller motile male gamete is termed as oogamous. The large non-motile female egg fuses with male gamete which is motile and it is known as antherozoid.

So, the correct answer is option C.