First three layers of microsporangium which does function of protection are

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1.Sexual Reproduction in Flowering Plants

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First three layers of microsporangium which does the function of protection are

Epidermis, middle layer, endothecium

Epidermis, mesocarp, endocarp

Epidermis, endothecium, middle layer

Epidermis, endocarp, mesocarp

Solution

Epidermis, middle layer; endothecium, they are present outerly and have the function of protection. But sometime endothecium does the function of nourishment

Standard 12

Biology

Which one of the following is resistant to enzyme action?

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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.

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$A$ – Only some cells of the sporogenous tissue is capable of giving rise to microspore tetrad.

$R$- The microspores are arranged in a cluster of four cells – the microscopic tetrad.

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Identify figure.

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Members of which plant family, pollen grains maintain viability for months ?

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First three layers of microsporangium which does the function of protection are

Solution

Similar Questions

Which one of the following is resistant to enzyme action?

$A$ : 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.

$A$ – Only some cells of the sporogenous tissue is capable of giving rise to microspore tetrad. $R$- The microspores are arranged in a cluster of four cells – the microscopic tetrad.

Identify figure.

Members of which plant family, pollen grains maintain viability for months ?

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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.

$A$ – Only some cells of the sporogenous tissue is capable of giving rise to microspore tetrad.

$R$- The microspores are arranged in a cluster of four cells – the microscopic tetrad.