Identify the type of sexual reproduction where gametes are SIMILAR IN SIZE AND BOTH non-flagellated (as in Spirogyra).
AParthenogamous
BIsogamous (similar gametes — flagellated or non-flagellated)
COogamous (large non-motile + small motile)
DAnisogamous (gametes dissimilar in size)
Answer & Solution
Correct answer: B. Isogamous (similar gametes — flagellated or non-flagellated)
Isogamy = gametes similar in size; can be flagellated (Ulothrix) or non-flagellated (Spirogyra). Anisogamy = sizes differ (Eudorina). Oogamy = large non-motile + small motile (Volvox, Fucus).
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