Male gametophyte in angiosperms produces:
Three sperms
Two sperms and a vegetative cell
Single sperm and a vegetative cell
Single sperm and two vegetative cells
Related Questions
The male gametophyte in angiosperms is responsible for producing:
Two female gametes
One male and one female gamete
Two male and one female gamete
Two male gametes
The exceptional preservation of pollen in fossil records is primarily attributed to the presence of which biopolymer?
Cellulose
Chitin
Sporopollenin
Pectin
Approximate diameter of pollen grain is
25-50 micrometer
50-75 micrometer
75-100 micrometer
25-35 micrometer
Pollination by bats is called
Anemophily
Hydrophily
Ornithophily
None of these
Pollen grains are shed at
1-celled stage
2- celled stage
2,3- celled stage
5- celled stage
In the fully organized Polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?
Both autogamy and geitonogamy are prevented in?
cucumber
castor
maize
papaya
The terminal structure of stamen is called
Pollen
Filament
Anther
All of these
For the formation of tetrasporic embryo sac, how many megaspore mother cells are required?
1
2
3
4
Imagine a plant species where the pollen tube enters the embryo sac through the chalaza instead of the micropyle (chalazogamy). Which of the following would be the LEAST affected by this unusual entry pathway?
The path of pollen tube growth within the style.
The interaction between the pollen tube and the synergids.
The genetic makeup of the sperm cells.
The timing of pollen tube discharge into the embryo sac.
