Exine of pollen grains is composed of

Important Questions on Sexual Reproduction in Flowering Plants

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 16

In Angiosperm all the four microspore of tetrad are covered by layer, which is formed by:

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 17

Pollinia is found in which of the following plant family

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 20

The pollen grain is

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 21

How many meiotic divisions are necessary to produce $100$ pollen grains

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 23

Which of the following statements about sporopollenin is false?

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 24

Which one of the following statements is not true?

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 25

If there are 1280 microspores in a tetralocular anther, how many microspore mother cells would be there in its each pollen chamber?

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NTA Errorless Biology Volume-2>Chapter 2 - Sexual Reproduction in Flowering Plants>Ordinary Thinking>Q 26

The function of innermost layer of pollen sac, tapetum is