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Question
Assertion :Zoospores in Chlamydomonas are frequently formed in the night during favourable conditions. Reason: Zoospores swim for a certain time and then grow into a new plant.
Assertion :Zoospores in Chlamydomonas are frequently formed in the night during favourable conditions. Reason: Zoospores swim for a certain time and then grow into a new plant.
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- In Chlamydomonas, zoospores are formed in the night and are released by rupturing the cell wall.
- Zoospores formation is the most effective and rapid way of reproduction under favorable environmental conditions.
- They develop either in zoosporangia or vegetative cells. They settle on a substratum and form thallus.
- These are flagellated asexual spores. Due to the presence of flagella they can swim for many hours using endogenous food reserve to reproduce into a new plant.
So, the correct option is B.
- In Chlamydomonas, zoospores are formed in the night and are released by rupturing the cell wall.
- Zoospores formation is the most effective and rapid way of reproduction under favorable environmental conditions.
- They develop either in zoosporangia or vegetative cells. They settle on a substratum and form thallus.
- These are flagellated asexual spores. Due to the presence of flagella they can swim for many hours using endogenous food reserve to reproduce into a new plant.
So, the correct option is B.
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