Isogamous condition with non-flagellated gametes is found in :

Options

(a) Spirogyra
(b) Volvox
(c) Fucus
(d) Chlamydomonas

Correct Answer:

Spirogyra

Explanation:

In Spirogyra, sexual reproduction occurs through conjugation. Gametes are non-flagellated morphologically similar. But physiologically different (isogamy with physiological anisogamy). Volvox and fucus are examples of oogamous and Chlamy-domonas contains isogamous flagellated gametes