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Question
Why is sexual reproduction in spirogyra an advanced feature?
Why is sexual reproduction in spirogyra an advanced feature?
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Solution
Spirogyra:
- Spirogyra are the free-floating green algae present in fresh waterbodies like ponds, lakes, etc.
- They are commonly known as water silk or pond silk and have a unbranched and filamentous vegetative structure.
- Sexual reproduction in spirogyra is an advanced feature because it involves the fusion of two morphologically similar isogametes and physiologically differentiated sex organs or anisogametes.
- During reproduction in spirogyra the male acts as an active gamete and the female acts as a passive gamete.
- The fusion of the gametes takes place by scalariform conjugation or lateral conjugation.
Spirogyra:
- Spirogyra are the free-floating green algae present in fresh waterbodies like ponds, lakes, etc.
- They are commonly known as water silk or pond silk and have a unbranched and filamentous vegetative structure.
- Sexual reproduction in spirogyra is an advanced feature because it involves the fusion of two morphologically similar isogametes and physiologically differentiated sex organs or anisogametes.
- During reproduction in spirogyra the male acts as an active gamete and the female acts as a passive gamete.
- The fusion of the gametes takes place by scalariform conjugation or lateral conjugation.
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