Question

Cross pollination brings about _______ recombination in new plants.
(a) Genetic
(b) Morphologic
(c) Nongenetic
(d) None of these

Answer 1

Hint: Cross-pollination is the process of transfer of pollen from the anther of one flower to the stigma of another flower present on a different plant of the same species. This brings about recombination in the structure which carries parental information from one generation to another.

Complete answer:
Cross-fertilization is the fertilization of an ovum from one individual with the spermatozoa of another. In contrast, autogamy refers to self-fertilization where both the ovum and spermatozoa belong to the same individual.
Cross-fertilization between unrelated individuals sometimes leads to the masking of deleterious recessive alleles from either of the parents in the progeny, unlike the close inbreeding, including self-fertilization in plants, which tends to lead to the harmful expression of deleterious genes
Additional Information:
In dioecious plants, the stigma of the flower may receive pollen from several different potential donors. This results in multiple pollen tubes from different donors growing through the stigma to reach the ovary. The receiving maternal plant then carries out pollen selection by favoring pollen from less related donor plants to ensure maximum genetic variation.
So, the answer is, ‘Genetic.’

Note: Cross-fertilization can be of two types: Allogamy and Xenogamy. When the pollen from one flower fertilizes the ovum from another flower of the same individual or plant, it is known as Allogamy. This is fundamentally cross-pollination but accounts for very few or no genetic variation. When the pollen from one flower fertilizes the ovum of another flower of a different plant or individual of the same species, it is known as Xenogamy. It accounts for maximum genetic variation and recombination.