Explain any two devices by which autogamy is prevented in floweri… - Vidyadip

Question

Explain any two devices by which autogamy is prevented in flowering plants.

✓

Answer

Male and female flowers are present on different plants.
The stamens and stigma of a bisexual flower mature at different times.
1. Anthers mature earlier than the stigma and release pollens.
2. The stigma matures earlier than the anther.
Flowers are self-sterile or self-incompatible.
Chasmogamous flowers are present with exposed stamens and stigma which facilitate cross-pollination.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Sexual Reproduction in Flowering Plants→Sexual Reproduction in Flowering Plants — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Differentiate between albuminous and non-albuminous seeds, giving one example of each.

Give difference between gene frequency and gene pool.

What is fermentors? Describe alcoholic beverages.

What is micropropagation?

Explain the following in context of cancer:
Benign tumour.

Give two reasons for keeping beehives in crop fields during flowering period.

Is it true, that carpets and curtains oblique drapes placed on the floor or wall surfaces can reduce noise level? Explain briefly.

Explain giving three reasons why tropics show, greatest level of species diversity.

Illustrate schematically the process of initiation, elongation and termination during transcription of a gene in a bacterium.

List two essential roles of ribosome during translation.