Which of the following has proved helpful in preserving pollen as fossils?
Which of the following has proved helpful in preserving pollen as fossils?
- [NEET 2018]
- A
Sporopollenin
- B
Pollenkitt
- C
Oil content
- D
Cellulosic intine
Similar Questions
Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube because
Even after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube because
- [AIPMT 1989]
$A$ : Each cell of the sporogenous tissue is capable of giving rise to a microspore tetrads.
$R$ : Most abundant microspore tetrads is the product of simultaneous cytokinesis.
$A$ : Each cell of the sporogenous tissue is capable of giving rise to a microspore tetrads.
$R$ : Most abundant microspore tetrads is the product of simultaneous cytokinesis.
The pollen grain is
The pollen grain is
- [AIPMT 1993]
Examine the figure given below and select the right option giving all the four parts $a, b, c$ and $d.$ Correctly identify
$a\quad \;b\quad\;c\quad\;d$
Examine the figure given below and select the right option giving all the four parts $a, b, c$ and $d.$ Correctly identify
$a\quad \;b\quad\;c\quad\;d$
Proximal end of the filament of stamen is attached to the
Proximal end of the filament of stamen is attached to the
- [NEET 2016]