Most of the Chlamydomonas species are isogamous in nature. In isogamous reproduction the fusion of gametes, which are similar in size, shape and structure, take place. These gametes are morphologically similar but physiologically dissimilar. In this statement whats does this line means explain it contain in there germ cell that make it morphologically similar and physiologically different?

Dear student,
Please find below the answer:

In isogamy, the gametes cannot be classified as male or female as they are similar in shape and size. Their morphology is the same as they develop through the process of mitosis. The products of mitosis do not develop a cell wall and end up becoming gametes. 

Hope this clears your doubt.
Regards.
 

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