Criteria for Autogamy to Take Place

Q. Even in absence of pollinating agents seed-setting is assured in

1. Viola
2. Fig
3. Zostera
4. Salvia

Q.

Which of the following is not a criteria for autogamy to occur?

1. Flowers must be bisexual.

2. Flowers require synchrony in pollen release and stigma receptivity.

3. Anthers and stigma should lie close to each other.

4. Flowers should exhibit heterostyly.

Q. Advantage of cleistogamy is

1. No dependence on pollinators
2. Vivipary
3. Higher genetic variability
4. More vigorous offspring

Q. Cleistogamous flowers are

1. Insect pollinated
2. Wind pollinated
3. Self pollinated
4. Bird pollinated

Q. Which one of the following pollinations is autogamous?

1. Homogamy
2. Xenogamy
3. Chasmogamy
4. Cleistogamy

Q.

Advantage of cleistogamy is:

1. Vivipary

2. Higher genetic variability

3. No dependence on pollinators

4. More vigorous offspring

Q.

In which one of the following pollinations is autogamous?

1. Cleistogamy

2. Xenogamy

3. Geitonogamy

4. Chasmogamy

Q.

Unisexuality of flowers prevents:

1. geitonogamy, but not xenogamy

2. autogamy and geitonogamy

3. autogamy, but not geitonogamy

4. both geitonogamy and xenogamy

Q.

The one advantage of cleistogamy is :

1. It leads to greater genetic diversity

2. Seed dispersal is more efficient and widespread

3. Seed set is not dependent on pollinators

4. Each visit of pollinator results in the transfer of hundreds of pollen grains.

Q.

Which of the following statements is NOT correct?

1. Cleistogamous flowers are always self pollinated.

2. Chasmogamous flowers are always cross pollinated.

3. Chasmogamous flowers are always self pollinated.

4. All of the above.