Assertion : Tapetum helps in the libertion of microspores from tetrad
Reason : Tapetum shows callose activity

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

A

Explanation

Mepham and Lane have demonstrated that in Tradescantia bracteata the plasmodial cytoplasm derived from the tapetum has callose activity. Shortly before callose degradation starts the cytoplasm of tapetal cells show certain vesicles which are probably associated with callose activity. The suggests that sporophytic tissue, presumably tapteum, is involved in the synthesis of callose enzyme for the release of microspores in a tetrated by degrading the callose wall.