Assertion : Pollen mother cells (PMCs) are first male gametophytic cells. Reason : Each PMC gives ri

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1.Sexual Reproduction in Flowering Plants

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Assertion : Pollen mother cells $(PMCs)$ are the first male gametophytic cells.
Reason : Each $PMC$ gives rise to two pollens.

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

If the Assertion is correct but Reason is incorrect.

If both the Assertion and Reason are incorrect.

(AIIMS-2009)

Solution

Primary sporogenous cell gives rise to microspore mother cells or pollen mother cells $(PMCs)$. They are sporophytic in nature i.e., diploid. These cells undergo meiosis (reduction division) which gives rise to $4$ microspores or pollens and this formation of microspores or pollens is called microsporo-genesis. Microspores represent the beginning of the gametophytic phase and they are haploid in nature.

Standard 12

Biology

Micropyle allows

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Mention about the viability of pollen grain.

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Mature male gametophyte is made up of

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In anther culture, the androgenic haploid plants are obtained from

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(AIPMT-1990)

Complete the following flow chart

Pollen Mother cell $\to $ Pollen tetrad $\to $ Pollen grain $\to $ Vegetative cell

Pollen Mother cell $\to $ Pollen tetrad $\to $ Pollen grain $\to $ ……….

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Assertion : Pollen mother cells $(PMCs)$ are the first male gametophytic cells. Reason : Each $PMC$ gives rise to two pollens.

Solution

Similar Questions

Micropyle allows

Mention about the viability of pollen grain.

Mature male gametophyte is made up of

In anther culture, the androgenic haploid plants are obtained from

Complete the following flow chart Pollen Mother cell $\to $ Pollen tetrad $\to $ Pollen grain $\to $ Vegetative cell Pollen Mother cell $\to $ Pollen tetrad $\to $ Pollen grain $\to $ ……….

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Assertion : Pollen mother cells $(PMCs)$ are the first male gametophytic cells.
Reason : Each $PMC$ gives rise to two pollens.

Complete the following flow chart

Pollen Mother cell $\to $ Pollen tetrad $\to $ Pollen grain $\to $ Vegetative cell

Pollen Mother cell $\to $ Pollen tetrad $\to $ Pollen grain $\to $ ……….