Chalazogamy is shown by?
petunia
cucurbita
pistacia
casuarina
Related Questions
What is the role of the silks that emerge from the top of a corn cob?
To protect the developing kernels
To attract pollinators
To provide nutrients to the kernels
To receive pollen for fertilization
Which one of the following is a reference to xenogamy ?
Ripening of androecium earlier to gynoecium
Pollen grains of one flower reaching the stigma of another flower present on the same plant
Pollen grains of one flower reaching the stigma of another flower present on a different plant of the same species
The inability of pollen tube to terminate on the stigma of the same flower
Megasporogenesis is
The process of formation of megaspores from the megaspore mother cell.
The development of the pollen grain in the anther.
The fusion of male and female gametes in plants.
The development of the fruit after fertilization.
In Loranthus, the ovule is enclosed by
2 integuments
1 integument
No integuments
3 integuments
‘Cells at the chalazal end are called synergid cells’. The above statement is
TRUE
FALSE
Sometimes (a) and sometimes (b)
Neither (a) nor (b)
Attractants and rewards are required for
Cleistogamy
Anemophily
Entomophily
Hydrophily
A mutation affects the tapetum in a developing anther, leading to premature degeneration of this tissue. What is the MOST likely direct consequence of this mutation?
Increased production of viable pollen grains.
Enhanced pollen germination rates.
Defective pollen wall formation and reduced pollen viability.
Accelerated development of the microspore mother cells.
Raphe is
Part of flower
Funicle attached to ovule
Ridge formed by funiculus
Part of nucellus
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
