Fusion of Gametes

Q. Which of the following algae exhibit all three forms of syngamy - isogamy, anisogamy and oogamy?

1. Spirogyra
2. Fucus
3. Volvox
4. Chlamydomonas

Q. The fusion of two gametes dissimilar in size is called

1. isogamy
2. anisogamy
3. zoogamy
4. oogamy

Q. is the first stage of the gametophyte during the life cycle of mosses.

1. Protonema
2. Gemmae
3. Sporophyll
4. Antherozoid

Q. Which one of the following is wrongly matched?

1. Gemma cups - Marchantia
2. Biflagellate zoospores - Brown algae
3. Uniflagellate gametes - Polysiphonia
4. Unicellular organism - Chlorella