Which one of the following may require pollinators, but is genetically similar to autogamy? [2015 RS]a)Xenogamyb)Apogamyc)Cleistogamyd)GeitonogamyCorrect answer is option 'D'. Can you explain this answer?

Question

Which one of the following may require pollinators, but is genetically similar to autogamy?      [2015 RS]a)Xenogamyb)Apogamyc)Cleistogamyd)GeitonogamyCorrect answer is option 'D'. Can you explain this answer?

Answer

Option D is correct, because it is genetically similar to atogamy because it occurs in same plant but different flower.. but it ecologycally allogamy (cross pollination) it requires pollinating agents .. xenogamy is true cross pollination.. clestarogamy is occurs in cletrogamas flowers it always contains self pollination (atogamy)....

Answer

(d) Geitonogamy, genetically, shows similarity with autogamy because the pollen grains are born on the same plant. ##

Answer

Geitnogamy genetically similar to autogamy ..but it requires    pollinators ..

Answer

Why not cleistogamy ?

Answer

In Geitenogamy the pollination becomes anther to stigma on the different flowers on the same plant so it also undergo cross pollination also self pollination

Answer

Explanation:

Autogamy:
Autogamy is a type of self-pollination in which the pollen from the anther is transferred to the stigma of the same flower or to the stigma of another flower on the same plant. This process does not require external agents such as pollinators for successful pollination.

Geitonogamy:
Geitonogamy is a type of cross-pollination in which the pollen from the anther of one flower is transferred to the stigma of another flower on the same plant. Although geitonogamy requires the transfer of pollen between two flowers, it is considered genetically similar to autogamy because the pollen and stigmas involved are from the same plant.

Differences between Autogamy and Geitonogamy:
- In autogamy, the transfer of pollen occurs within the same flower, while in geitonogamy, the transfer occurs between different flowers on the same plant.
- Autogamy does not require external agents for pollen transfer, while geitonogamy may require the assistance of wind, water, or other pollinators for successful pollen transfer.

Options:
a) Xenogamy: Xenogamy is a type of cross-pollination in which the pollen from the anther of one plant is transferred to the stigma of another plant. It does not involve self-pollination and requires external agents such as insects, birds, or wind for pollen transfer.

b) Apogamy: Apogamy is a type of asexual reproduction in plants where the formation of a sporophyte occurs without the fusion of gametes. It does not involve pollination or the transfer of pollen.

c) Cleistogamy: Cleistogamy is a type of self-pollination in which the flowers remain closed and the pollen is transferred from the anther to the stigma within the closed flower. It does not require external agents for pollen transfer and is genetically similar to autogamy.

d) Geitonogamy: As explained earlier, geitonogamy is a type of cross-pollination in which the pollen from the anther of one flower is transferred to the stigma of another flower on the same plant. It requires external agents for pollen transfer but is genetically similar to autogamy.

Therefore, the correct answer is option d) Geitonogamy.

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