Allogamy is best favoured by:a)Cleistogamyb)Diclinyc)Dichogamyd)HomogamyCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

Correct option is(d)

Answer

In plants allogamy is used to mean specifically the use of pollen from one plant to fertilize the other and usually synonymous with the term cross fertilization. The answer is B.because dicliny refers to separation of male and female reproductive parts into different flowers.

Answer

Allogamy also known as cross fertilization is the transfer of pollen grains from anthers to stigma of a flower borne on different plant. It is best favoured by dicliny where the flowers are unisexual which means the stamens and pistils are borne on separate flowers.

Homogamy is a condition of having only one type of flower, one which produces both male and female parts on the same flower.

Cleistogamy is a type of automatic self-pollination of certain plants that can propagate by using non-opening, self-pollinating flowers. Especially well known in peanuts, peas, and beans, this behavior is most widespread in the grass family.

Answer

Allogamy is best favoured by Dicliny. Dicliny refers to unisexual flowers. So the Crt opt is B.

Answer

Diclinity  is Cross pollination

Answer

Allogamy is best favoured by dicliny.

Dicliny, also known as unisexuality or monoecy, is a reproductive system in plants where individual flowers are either functionally male or functionally female. This means that a single plant can have separate male and female flowers, or even separate male and female plants.

Allogamy, on the other hand, refers to a type of reproduction where the gametes come from different individuals. This is in contrast to autogamy, where the gametes come from the same individual, or geitonogamy, where the gametes come from different flowers of the same plant.

Advantages of allogamy:
- Genetic diversity: Allogamy promotes genetic diversity by allowing for the exchange of genetic material between different individuals. This can be beneficial for the survival and adaptation of a species in changing environments.
- Reduction of inbreeding depression: Inbreeding depression refers to the reduced fitness and viability of offspring resulting from mating between closely related individuals. Allogamy helps to reduce inbreeding depression by promoting outcrossing, which introduces new genetic variation and can mask deleterious recessive alleles.
- Facilitates adaptation to changing environments: Allogamy increases the chances of beneficial genetic mutations or variations arising within a population. This allows for a greater potential for adaptation to changing environmental conditions, as individuals with advantageous traits have a higher probability of producing offspring.
- Enhanced disease resistance: Allogamy increases the potential for genetic recombination, which can result in the production of offspring with enhanced disease resistance. This is because new combinations of genes may provide better defense mechanisms against pathogens and parasites.
- Efficient pollination: Diclinous plants often rely on allogamy to ensure efficient pollination. By having separate male and female flowers or plants, they can attract different pollinators, increasing the chances of successful pollination and fertilization.

In conclusion, allogamy, particularly when facilitated by dicliny, offers several advantages for plant species, including genetic diversity, reduced inbreeding depression, adaptation to changing environments, enhanced disease resistance, and efficient pollination. These factors contribute to the overall reproductive success and survival of plant populations.

Answer

In plants allogamy is used to mean specifically the use of pollen from one plant to fertilize the other and usually synonymous with the term cross fertilization. Dicliny refers to separation of male and female reproductive parts into different flowers.

Similar NEET Doubts

Allogamy is best favoured by

The allogamy is best favoured by

Allogamy is best favoured by

Allogamy is best favoured by

Maturation of anthers and stigma at the same time is

Top Courses for NEETView all

Biology Class 11

Daily Test for NEET Preparation

NEET Mock Test Series 2025

Topic-wise MCQ Tests for NEET

Physics Class 11

Top Courses for NEET

Top Courses for NEET

Suggested Free Tests

Related Content

About NEET

NEET Preparation Material

How to Prepare for NEET Exam?

NCERT Based Study Material

NEET Mock Tests

Other Popular Exams

Company