Criteria for Autogamy to Take Place
Which of the following is not a criteria for autogamy to occur?
Flowers must be bisexual.
Flowers require synchrony in pollen release and stigma receptivity.
Anthers and stigma should lie close to each other.
Flowers should exhibit heterostyly.
- No dependence on pollinators
- Higher genetic variability
- More vigorous offspring
- Insect pollinated
- Wind pollinated
- Self pollinated
- Bird pollinated
Advantage of cleistogamy is:
Higher genetic variability
No dependence on pollinators
More vigorous offspring
In which one of the following pollinations is autogamous?
Unisexuality of flowers prevents:
geitonogamy, but not xenogamy
autogamy and geitonogamy
autogamy, but not geitonogamy
both geitonogamy and xenogamy
The one advantage of cleistogamy is :
It leads to greater genetic diversity
Seed dispersal is more efficient and widespread
Seed set is not dependent on pollinators
Each visit of pollinator results in the transfer of hundreds of pollen grains.
Which of the following statements is NOT correct?
Cleistogamous flowers are always self pollinated.
Chasmogamous flowers are always cross pollinated.
Chasmogamous flowers are always self pollinated.
All of the above.