A flower exhibiting cleistogamy, but with viable pollen grains, fails to produce seeds. Which of the following is the LEAST likely explanation for this observation?
Lack of pollinating agents
Failure of pollen tube growth
Non-functional stigma
Problems with fertilization
Related Questions
In angiosperm functional megaspore develops into
Embryo sac
Ovule
Endosperm
Pollan sac
The egg apparatus of angiosperm comprises.
an egg cell and two antipodals
an egg cell and two synergids
an egg cell and two polar nuclei
an egg cell and the central cell
Male gametes in angiosperms are formed by the division of?
Generative cell
vegetative cell
microspore
microspore mother cell
Filiform apparatus is a characteristic feature of
Egg
Synergid
Zygote
Suspensor
A typical angiosperm embryo sac at maturity, is
4 – nucleate, 2 – celled
8 – nucleate, 7 – celled
4 – nucleate, 4 – celled
8– nucleate,4 – celled
Embryo sac of angiosperms
Has 3 synergids and 2 anitpodal cells
Has three celled egg apparatus
Is 8 celled and 7 nucleate structure
Has three antipodal cells at micropylar end
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
The ovule of an angiosperm is technically equivalent to
megaspore
megasporangium
megasporophyll
megaspore mother cell
In angiosperm functional megaspore develops into
Embryo sac
Ovule
Endosperm
Pollan sac
The egg apparatus of angiosperm comprises.
an egg cell and two antipodals
an egg cell and two synergids
an egg cell and two polar nuclei
an egg cell and the central cell
