Question

Repeated selfing produces:
A. Heterozygosity
B. Homozygosity
C. Homozygosity in some and heterozygosity in other traits
D. Pure hybrids

Answer 1

Hint: Selfing is another name given to self-pollination in case of plants. Male gametophytes form from pollen grains, while female gametophytes form from the megaspore mother cell, during pollination, a type of sexual reproduction. Over the female reproductive organ, the male gamete has finished growing.

Complete Step by Step Answer:
Pollen grains are moved from the anther to the micropylar canals during the process of pollination. Pollination can be divided into two categories: self-pollination and cross-pollination, depending on how genetically similar the anthers and stigmas are.
Self-pollination occurs within the same plant, therefore external assistance is not needed. Because pollen is transferred between identical or genetically related flowers, variation cannot be produced. Anthers and stigmas develop simultaneously in flowers that are hermaphrodite or intersexual. Flowers may be opened and shut, and no particular framework is needed. It produces blue lines, which induce homozygosity. It cannot add a new trait while getting rid of negative features. Due to a decline in adaptation and a high risk of illness, it exhibits a decline in yield with time.
The importance of pollination is that it facilitates male and female gamete transfer for fertilisation via both biotic and abiotic means, prevents premature ovary abscission, results in the production of hormones from pollen grains that stimulate ovary growth, promotes gene recombination, and aids in the production of hybrid seeds.
Hence, the correct option is B. Homozygosity

Note: Cross-pollination is preferable over self-pollination because it prevents deadly or detrimental recessive alleles from becoming homozygous, but self-pollination is unable to remove lethal features, so they become toxic.