Question

Which is not the characteristic feature in Spirogyra life history?

• A. Isogamous conjugation
• B. Fragmentation
• C. Zoospore formation
• D. Akinete formation

Answer 1

Answer: (C)

Zoospore formation

Spirogyra does not make the motile gametes called the zoospores. These are produced by fungi and some protists.

A. Isogamous conjugation or lateral conjugation occurs in Spirogyra.

B. Fragmentation is the common type of asexual reproduction seen in Spirogyra.

C. Zoospores are not formed by Spirogyra.

D. Akinete formation occurs in Spirogyra during the unfavourable condition.

Hence, the correct answer is 'Zoospore formation'