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
‘Cells at the chalazal end are called synergid cells’. The above statement is
TRUE
FALSE
Sometimes (a) and sometimes (b)
Neither (a) nor (b)
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
The body of the ovule is fused with in the funicle at
Hilum
Micropyle
Nucellus
Chalaza
What is the function of the tapetum in the anther?
Protection of the anther
Production of pollen grains
Nourishment of developing pollen grains
Dehiscence of the anther
In a flowering plant, the pollen tube first arrives in?
egg
antipodal cell
synergid
central cell
Which one forms the endosperm?
antipodal
synergids
secondary nucleus
oospore
In nature, cleistogamous flowers are
Self-pollinated
insect-pollinated
Wind-pollinated
Bird-pollinated
In the fully organized Polygonum type of embryo sac, what is the ratio of haploid, diploid and triploid nuclei?
If the Yucca moth population were to drastically decline, what would be the most likely impact on the Yucca plant population?
Increase in Yucca plant population
No impact on Yucca plant population
Decline in Yucca plant population
Increased genetic diversity in Yucca plants
The ovule of an angiosperm is technically equivalent to
megaspore
megasporangium
megasporophyll
megaspore mother cell
