Question

Cleistogamous flowers are found in
A) Arachis hypogaea
B) Solanum tuberosum
C) Cucumis melo
D) Dallium cepa

Answer 1

Hint: Cleistogamous flowers are flowers that stay closed throughout their lifespan. Cleistogamy is the type of self-pollination that occurs in such closed flowers. As these flowers do not open at all, there is no space for cross-pollination.

Complete answer: Cleistogamous flowers are those flowers that do not open because their reproductive whorls are not exposed to them. The type of pollination that takes place within them is autogamy, where the transfer of pollen grains takes place from the anther to the stigma of the same flower. The anthers dehiscence inside the closed flowers and the pollen grains from the dehisced anthers fall under the stigma of the same flower. These pollens fuse with egg cells to give birth to a zygote that develops further into a full plant. Cleistogamous flowers are Viola mirabilis and Oxalis acetosella. Both chasmogamous and cleistogamous flowers are found in plants such as Commelina benghalensis. Allium cepa and Cucumis melo pollinators are bees and their pollination is entomophilic. The two of them that is. Onion and Pumpkin grow bright flowers, so the bees get drawn to them and pollinate. Cleistogamous flowers can be found in Arachis hypogaea.
Hence, the correct answer is option A.

Note: It should be noted here that cleistogamous flowers vary from those of chasmogamous flowers. While cleistogamous flowers do not open at all, chasmogamous flowers open when ripe. Cleistogamous flowers are self-pollinated. Chasmogamous flowers, on the other hand, are normally cross-pollinated and rarely self-pollinated.