Which is incorrect statement?
$I$. Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad.
$II$. The pollen grain represent male gametophyte.
$III$. Pollen grains are usually triangular and $10-15 \mu m$ in diameter.
$IV$. Sporopollenin is one of the most resistance organic material which can be destroyed only by strong acids
and alkali.
Which is incorrect statement?
$I$. Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad.
$II$. The pollen grain represent male gametophyte.
$III$. Pollen grains are usually triangular and $10-15 \mu m$ in diameter.
$IV$. Sporopollenin is one of the most resistance organic material which can be destroyed only by strong acids
and alkali.
- A
$I$, $II$ are incorrect but $III$, $IV$ are correct
- B
$III$, $IV$ are incorrect but $I$, $II$ are correct
- C
$I$, $III$ are incorrect but $II$, $IV$ are correct
- D
$II$, $IV$ are correct but $I$, $III$ are incorrect
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.
$A$ : 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 : Pollen mother cells $(PMCs)$ are the first male gametophytic cells.
Reason : Each $PMC$ gives rise to two pollens.
Assertion : Pollen mother cells $(PMCs)$ are the first male gametophytic cells.
Reason : Each $PMC$ gives rise to two pollens.
- [AIIMS 2009]
Tectum, baculum, foot layer are the different parts of
Tectum, baculum, foot layer are the different parts of
The process of formation of microspores from a pollen mother cell is called
The process of formation of microspores from a pollen mother cell is called