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Q13. Isogamous condition with non-flagellated gametes is found in:

1. Spirogyra

Solution:

Isogamy is found in Spirogyra in which both gametes are non-motile. In Chlamydomonas, all three conditions, isogamy anisogamy and oogamy are found. Both motile and non-motile gametes are found. In Volvox and Fucus, oogamy is present, where non-motile egg fuses with motile sperm.

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