A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is contaning more number of chromosomes as compared to other dividing cells. This would results in
- Polyploidy
- Somaclonal variation
- Polyteny
- Aneuploidy
The Correct Option is A
Solution and Explanation
Explanation:
TERMS USED IN THE QUESTION:
- Telophase: The final stage of cell division, where chromosomes have reached opposite poles of the cell and begin to decondense.
- Cell plate: As we are observing a plant cell, a cell plate is a structure that forms during cytokinesis (the division of the cytoplasm), which will eventually become the new cell wall of the daughter cells.
TERM USED IN THE ANSWER:
- Polyploidy is a condition where cells have multiple sets of chromosomes
- In plant cells, division typically involves the formation of a cell plate to create a new cell wall.
- Now, in our case, cell plate formation doesn’t occur, which suggests that cytokinesis wasn't complete.
- Due to this, the cell ends up with double the normal number of chromosomes. This condition is called polyploidy.
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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.