Attempted
Correct
UnAttempted
Wrong
Microspore in angiosperms contain
The cause of dormancy for sometime in fertilized ovule is
As a pollen tube grows into the female organ, the nucleus that enters the synergid first is called the
The advantage of cross-fertilization in plants is
In pulses, proteins are stored in :
The seeds of pulses are non-endospermic orex-albuminous and hence proteins are stored in cotyledons
Middle layers of the microsporangial wall
Pollengrain is liberated in
If anangiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be
The male gamete will be haploid (n).2 polar nuclei will be diploid (2n). Endosperm formed by fusion of male gamete with two polar nuclei will be pentaploid.
Malegamete + 2 polar nuclei → Endosperm
n (2n+2n) (5n)
Fruit-eating bats tend to feed extremely rapidly on fruits and have relatively inefficient digestion(some times defecating seeds as early as an hour after feeding on them).Why are they good seed dispersal agents ?
In some dicots, no distinct endosperm can be seen. Why ?