First slide

Pre-fertilisation : Structures and Events

Question

Which one of the following statements is correct?

Easy

A

Although geitonogamy is functionally autogamy, genetically it is similar to cross-pollination.
B

Common pansy has both chasmogamous and cleistogamous flowers.
C

Most common pollinator for angiosperms is water
D

Continued cross-pollination result in inbreeding depression.

Solution

Common pansy or Viola has both chasmogamous and cleistogamous flowers.
Geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant.
Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocotyledons.
Continued self-pollination result in inbreeding depression.

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