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Question : Sexual reproduction in Spirogyra is an advanced feature because it shows

Answer»

physiologically DIFFERENTIATED SEX organs
different size of motile sex organs
same size of motile sex organs
MORPHOLOGICALLY differentsex organs

Solution :(a) In Spirogyra, the sexual reproduction involves the fusion of TWO morphologically indentical ISOGAMETES and physiologically dissimilar anisogamets.This is a case of primitive anisogamy. In this the active gamete is known as the male and the passive as the female.


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