Sexual reproduction in Spirogyra can be described as

Options

A. Morphological anisogamy and physiological isogamy
B. Morphological as well as physiological isogamy
C. Morphological as well as physiological anisogamy
D. Morphological isogamy and physiological anisogamy

Answer

D

Explanation

In spirogyra the two gamete produce are morphologically similar and are known as isogamies however at the time of conjugation male gamete become active and motile and female gamete passive and non motile so physiologically is anisogamous.