Isogamous reproduction and flagellated gametes can be observed in
Isogamous reproduction and flagellated gametes can be observed in
Polysiphonia
Fucus
Ulothrix
Spirogyra
Solution
Sexual reproduction takes place through the fusion of two gametes. These gametes can be flagellated and similar in size (as in Ulothrix) or non-flagellated (non-motile) but similar in size (as in Spirogyra). Such reproduction is called isogamous.