(C) The statement in option $C$ is incorrect. While the cells of the tapetum often show an increase in $DNA$ content due to endomitosis or polyploidy

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Cells of tapetum and endothecium show increase in $DNA$ contents by endomitosis and polyteny.

(C) The statement in option $C$ is incorrect. While the cells of the tapetum often show an increase in $DNA$ content due to endomitosis or polyploidy to support the high metabolic demand of pollen development,the cells of the endothecium do not typically exhibit this phenomenon. The endothecium functions primarily in the dehiscence of the anther due to its hygroscopic nature.

Class 12 Biology Sexual Reproduction in Flowering Plants Stamen, Microsporangium and Pollen Grain

Medium

Mark the incorrect statement.

A
Outer three layers of anther wall are protective in function.
B
Sporogenous tissue occupies the centre of each microsporangium.
C
Cells of tapetum and endothecium show increase in $DNA$ contents by endomitosis and polyteny.
D
Ploidy level of microspore tetrad is haploid.

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Chapter

Sexual Reproduction in Flowering Plants

Subtopic

Stamen, Microsporangium and Pollen Grain

Choose the correct sequence of wall layers in a microsporangium of an angiosperm, starting from the outermost to the innermost layer.

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Examine the figure given below and select the right option identifying all the four parts $a, b, c$ and $d$.

Medium

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In a two-celled pollen grain,which cells are present?

Medium

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In order to check the purity of honey and its source,pollen grains are studied in a sample of honey. Such a study is called:

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Choose the correct option showing the right arrangement of different wall layers from the sporogenous tissue to the periphery in a $T.S.$ of a young anther.

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Mark the incorrect statement.

Similar Questions

Choose the correct sequence of wall layers in a microsporangium of an angiosperm, starting from the outermost to the innermost layer.

Examine the figure given below and select the right option identifying all the four parts $a, b, c$ and $d$.

In a two-celled pollen grain,which cells are present?

In order to check the purity of honey and its source,pollen grains are studied in a sample of honey. Such a study is called:

Choose the correct option showing the right arrangement of different wall layers from the sporogenous tissue to the periphery in a $T.S.$ of a young anther.

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