Mechanisms of Pollination

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What is pollination?

Pollination is the transfer of pollen grains from the anther to the stigma of a flower.

What are the main parts of a flower involved in pollination?

The main parts are the female organ (pistil) and the male organ (stamen).

Name three methods by which pollination can occur.

Pollination can occur by wind, water, or insects.

Define self-pollination.

Self-pollination occurs when pollen grains from a flower's anther are carried to the stigma of the same flower.

Why is cross-pollination genetically favorable?

Cross-pollination is genetically favorable because it involves gene mixing and can produce more diverse characteristics.

What is required for cross-pollination to occur?

Cross-pollination requires pollinating agents like insects, wind, or water.

Which type of pollination does not require a pollinating agent?

Self-pollination does not require a pollinating agent.

How does wind aid in pollination?

Wind carries pollen grains from one flower to another, enabling pollination without physical contact.

What role do insects play in pollination?

Insects transfer pollen grains from flower to flower while searching for nectar, facilitating cross-pollination.

Explain how water can aid in pollination.

Water can transport pollen grains to the stigma, usually in aquatic plants.

What part of the plant most attracts pollinators during pollination?

Petals attract pollinators with their color and scent.

What is a pollinating agent?

A pollinating agent is any force that helps carry pollen from an anther to a stigma, such as wind, insects, or water.

Which type of pollination involves the same flower?

Self-pollination involves the same flower.

What is the genetic disadvantage of self-pollination?

Self-pollination does not mix genes, reducing genetic diversity.

What is the advantage of cross-pollination over self-pollination?

Cross-pollination increases genetic variability and plant adaptability.