Continued self pollination results in
- Continued self pollination results in
- Inbreeding depression
- Gametes loose vigour
- Self incompatibility
The Correct Option is B
Solution and Explanation
Option B Inbreeding depression is the correct answer.
Explanation of Autogamy and Inbreeding:
In plants, autogamy transfers pollen grains to stigma within the same flower. This is similar to self-pollination and another concept called inbreeding. To ensure autogamy, plants have developed certain adaptations like:
- Bisexuality
- Homogamy
- Cleistogamy
Autogamy may be useful for plants where it does not require pollinating agents, and also the plants do not need to produce costly nectar and fragrances to attract pollinating agents. However, since there is no random mating as the flowers are self-pollinated, this reduces the chances of genetic variability.
The concept of breeding is common in animal husbandry practices. In plants, inbreeding is a process in which mating is allowed among similar breeds having common ancestors for at least 4-6 generations. This increases the homozygosity of the race. Due to inbreeding depression, plants lose their chances of variations, and thus the race is lost soon in the near future. Random mating is essential from the point of evolutionary aspects.
Top Questions on Strategies For Enhancement in Food Production
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List II
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Concepts Used:
Strategies For Enhancement in Food Production
Animal Husbandry
The raising and breeding of livestock are known as animal husbandry. Dairy farm management and fisheries are also included under animal husbandry and responsible for the selection of good breeds for better yield, maintaining a well-ventilated house and proper cleanliness and hygiene, and regulating proper disposal of waste.
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Animal Breeding
The practice of raising a group of animals belonging to a common species. Inbreeding and outbreeding are the two types of animal breeding.
- Animals of superior male and female breed are made to mate for 4 to 6 generations. According to Mendel's experiment, true-breeding species or pure lines are created by Inbreeding which results in homozygosity.
- The breeding involving animals that are not related is known as outbreeding.
- Bee-keeping: The rearing of bees for the production of honey and beeswax is known as apiculture. One of the most common species of the honey bee is Apis indica. Beeswax is used to prepare polish, cosmetics, etc.
- Fisheries: Cultivation or breeding of aquatic flora and fauna for a commercial purpose is known as aquaculture. Fish and fish products for consumption are known as pisciculture.
Plant Breeding
In order to get rid of nutrient deficiency diseases, crops need to have a specific nutrient value besides disease resistance, pest resistance, and high yield capacity. There are many strategies for enhancing food production through plant breeding.
- Somatic Hybrids
- Totipotency
- Biofortification
Plant Breeding for Disease Resistance
Plant Breeding for Pest Resistance
Plant Breeding for Improved Food Quality
Single-Cell Protein
One of the ways to meet the growing demand of nutrients in plants and animals is a single-cell protein which is biomass that is rich in protein. microbes are produced on an industrial scale to get single-cell protein.