Tapetal cells are characterized by

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1.Sexual Reproduction in Flowering Plants

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Tapetal cells are characterized by

Mitotic division

Meiotic division

Endomitosis

Endomitosis as well as endopolyploidy

Solution

Tapetum is the innermost layer of anther wall. It is the major nourishing layer: Its cells become multinucleate and polyploid through endomitosis and endopolyploidy.

Standard 12

Biology

$A$ : Formation of mature male gametophyte requires one meiotic and one mitotic division in $60\;\% $ of the
angiosperms.
$R$ : Pollination occurs in three celled condition in majority of angiosperms.

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Assertion : If pollen mother cells has $42$ chromosomes, the pollen has only $21$ chromosomes.
Reason : Pollens are formed after meiosis in pollen mother cell.

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(AIIMS-1997)

Germination of pollen grain on the stigma is

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If there are four cells in a anther, what will be the number of pollen grains?

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Ubisch bodies are present in

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Tapetal cells are characterized by

Solution

Similar Questions

$A$ : Formation of mature male gametophyte requires one meiotic and one mitotic division in $60\;\% $ of the angiosperms. $R$ : Pollination occurs in three celled condition in majority of angiosperms.

Assertion : If pollen mother cells has $42$ chromosomes, the pollen has only $21$ chromosomes. Reason : Pollens are formed after meiosis in pollen mother cell.

Germination of pollen grain on the stigma is

If there are four cells in a anther, what will be the number of pollen grains?

Ubisch bodies are present in

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$A$ : Formation of mature male gametophyte requires one meiotic and one mitotic division in $60\;\% $ of the
angiosperms.
$R$ : Pollination occurs in three celled condition in majority of angiosperms.

Assertion : If pollen mother cells has $42$ chromosomes, the pollen has only $21$ chromosomes.
Reason : Pollens are formed after meiosis in pollen mother cell.