Question

Give advantages of Self Pollination.

Answer 1

Hint: Self- pollination takes place in monoecious plants and produces offspring genetically similar to the parent plant. It helps in maintenance of desired traits in the plant.

Complete answer:
Advantages of self-pollination
-It helps to keep the desired well-suited genotype stable in species.
-This type of pollination does not depend on pollinating agents.
-It ensures less wastage of pollen grain as the pollen grain is not transmitted from one flower to another flower.
-The meiosis followed by self-pollination adapted over long periods.
-The features of species maintained with purity because in self-pollination helps to preserve the parental character as the gamete from the same flower are evolved.
-Plants which are hermaphrodite that means flower having both male and female either fully developed or partial and plants which are monoecious which means flower having separate staminate and carpellate flowers are always found on the same plant, have the potential for self-pollination.

Additional Information:
Disadvantage of self-pollination
-Offspring derived from this type of pollination lacks variation.
- It can lead to inbreeding depression caused by a deleterious recessive mutation.
- The genetic defects in self-pollination plants cannot be eliminated by genetic recombination.
- Since the gene of offspring is similar to their parents which causes offspring to much less to adapt to the environment change.

Note: -Self pollination occurs in bisexual plants which contain both female and male sexual parts on the same flower. Self-pollination can be divided into two types- Autogamy and geitonogamy.
-For self-pollination in flowers the anther and stigma should be present in the same flower.
-Pollination by bat is known as chiropterophily. For this, flowers have to bloom at night, produce lots of pollen and nectar as reward to bat.