Which among the following statements are incorrect ?

(A) Transfer of pollen grains (shed from the anther) to the stigma of a pistil is termed as pollination.

(B) In a normal flower which opens and exposes the anthers and the stigma, complete autogamy is rather rare.

(C) Continued cross-pollination results in inbreeding depression.

(D) Geitonogamy is the only type of pollination which during pollination brings genetically different types of pollen grains to the stigma.

C and D only

The correct answer is Option (3)- C and D only

(A) Transfer of pollen grains (shed from the anther) to the stigma of a pistil is termed pollination.

• This statement is correct. Pollination is indeed the transfer of pollen grains from the anther to the stigma of a pistil.

(B) In a normal flower which opens and exposes the anthers and the stigma, complete autogamy is rather rare.

• This statement is correct. In flowers that are open and expose their reproductive organs, cross-pollination (not autogamy) is more common because the flower is accessible to pollinators and can receive pollen from other flowers.

(C) Continued cross-pollination results in inbreeding depression.

• This statement is incorrect. Inbreeding depression is usually caused by self-pollination or mating between closely related individuals, not by cross-pollination. Cross-pollination typically promotes genetic diversity.

(D) Geitonogamy is the only type of pollination which during pollination brings genetically different types of pollen grains to the stigma.

• This statement is incorrect. Geitonogamy is the transfer of pollen between different flowers of the same plant, which can bring genetically different pollen. However, it is not the only type of pollination that brings genetically different pollen grains. Cross-pollination (xenogamy) involves the transfer of pollen between flowers of different plants, which also brings genetically different pollen grains.