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Q.
Isogamous condition with non-motile gametes is found in:
NTA AbhyasNTA Abhyas 2022
Solution:
Fucus is a brown alga which shows oogamous reproduction. Chlamydomonas, Ulothrix and Spirogyra are green algae which shows isogamous condition, but in Spirogyra, the flagellated condition is completely absent in the life cycle thus it forms non-motile gametes.