12th Grade > Biology
STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION MCQs
Total Questions : 54
| Page 4 of 6 pages
Answer: Option D. -> All of the above
:
D
As human population started to grow exponentially, natural resources on Earth began to deplete. Extensive measures were taken to increase food supply to meet the growing demands. When foodgrains are produced in large amounts they have to be of superior quality in order to be stored and distributed efficiently. This required immediate measures or strategies for enhancement in food production.
:
D
As human population started to grow exponentially, natural resources on Earth began to deplete. Extensive measures were taken to increase food supply to meet the growing demands. When foodgrains are produced in large amounts they have to be of superior quality in order to be stored and distributed efficiently. This required immediate measures or strategies for enhancement in food production.
Answer: Option C. -> Traditional plant breeding
:
C
A researcher identifies a naturally occurring variant possessing characteristics of interest. This plant is selectively bred. This is an example of traditional plant breeding. Selective breeding (also called artificial selection) is the process by which humans use plant breeding to selectively develop particular phenotypic traits (characteristics).
:
C
A researcher identifies a naturally occurring variant possessing characteristics of interest. This plant is selectively bred. This is an example of traditional plant breeding. Selective breeding (also called artificial selection) is the process by which humans use plant breeding to selectively develop particular phenotypic traits (characteristics).
Answer: Option A. -> 1. Inbreeding; 2. Outcrossing; 3. Interspecific hybridisation; 4. Cross breeding
:
A
The type of breeding represented by 1 is inbreeding. It is the mating of organisms that are closely related through common ancestry. It is opposite to outcrossing as represented by 2. It is the mating of unrelated organisms (with respect to their ancestry). However, both inbreeding and outcrossing belong to the same breed.
3 represents interspecific hybridization. It is the cross between organisms of two different species. In this process, the offspring obtained is infertile. 4 represents crossbreeding in which organisms of two different breeds belonging to the same species are crossed and the offspring obtained are fertile.
:
A
The type of breeding represented by 1 is inbreeding. It is the mating of organisms that are closely related through common ancestry. It is opposite to outcrossing as represented by 2. It is the mating of unrelated organisms (with respect to their ancestry). However, both inbreeding and outcrossing belong to the same breed.
3 represents interspecific hybridization. It is the cross between organisms of two different species. In this process, the offspring obtained is infertile. 4 represents crossbreeding in which organisms of two different breeds belonging to the same species are crossed and the offspring obtained are fertile.
Answer: Option C. -> Somatic hybridization
:
C
Protoplast fusion is a type of genetic modification in plants by which two distinct species of plants are fused together to form a new hybrid plant with the characteristics of both, a somatic hybrid. Hybrids have been produced either between different varieties of the same species (e.g. between non-flowering potato plants and flowering potato plants) or between two different species of the same genus and hence intergeneric cross(e.g. between wheat triticum and rye secale to produce Triticale).
:
C
Protoplast fusion is a type of genetic modification in plants by which two distinct species of plants are fused together to form a new hybrid plant with the characteristics of both, a somatic hybrid. Hybrids have been produced either between different varieties of the same species (e.g. between non-flowering potato plants and flowering potato plants) or between two different species of the same genus and hence intergeneric cross(e.g. between wheat triticum and rye secale to produce Triticale).
Answer: Option A. -> True
:
A
Animals are made to live together in enclosures, and breed. This is called natural breeding. Although natural breeding relies on the natural process of mating between two individuals, natural breeding is controlled in the sense that onlyanimals with desirable characters will be selected.
:
A
Animals are made to live together in enclosures, and breed. This is called natural breeding. Although natural breeding relies on the natural process of mating between two individuals, natural breeding is controlled in the sense that onlyanimals with desirable characters will be selected.
Answer: Option D. -> All of the above
:
D
Some of the advantages of SCP are that the microbes can be grown in a small space for large scale production of protein. They can be grown in water and sewage. Other mediums like straw, molasses and animal manure can also be used. Such utilization also reduces environmental pollution.
:
D
Some of the advantages of SCP are that the microbes can be grown in a small space for large scale production of protein. They can be grown in water and sewage. Other mediums like straw, molasses and animal manure can also be used. Such utilization also reduces environmental pollution.
Answer: Option A. -> Explants
:
A
Explant - transfer of plant pieces including living cells, tissues, or organs from plants to a nutrient medium.
SomaClone - The plants produced that are genetically identical to the original (parent) plant are known as Somaclones.
Inoculant - It usually refers to introduction of microorganisms
Clone - organisms or cells which are genetically identical.
:
A
Explant - transfer of plant pieces including living cells, tissues, or organs from plants to a nutrient medium.
SomaClone - The plants produced that are genetically identical to the original (parent) plant are known as Somaclones.
Inoculant - It usually refers to introduction of microorganisms
Clone - organisms or cells which are genetically identical.
Answer: Option D. -> all round the year
:
D
An American company called AquaBounty Technologies has created a genetically modified variant of salmon called AquAdvantage salmon. They fused a growth hormone regulating gene from a Pacific Chinook salmon with a promoter from an ocean pout and added the transgene to the Atlantic salmon’s 40,000 genes. This transgene allows the fish to achieve accelerated growth rates and enables the salmon to grow year-round instead of only during spring and summer.
:
D
An American company called AquaBounty Technologies has created a genetically modified variant of salmon called AquAdvantage salmon. They fused a growth hormone regulating gene from a Pacific Chinook salmon with a promoter from an ocean pout and added the transgene to the Atlantic salmon’s 40,000 genes. This transgene allows the fish to achieve accelerated growth rates and enables the salmon to grow year-round instead of only during spring and summer.
:
The food products consumed in India and the world can be basically divided into two groups - plant products and animal products. Hence, to increase food production following two aspects have to be focussed on -
1) Plant breeding to increase the production of plant products
2) Animal husbandry to increase the production of animal products.
Question 40. IARI has released vegetable crops rich in nutrients. Match the following crops with their nutrients.
Column IColumn IIP.Vitamin A1.Spinach and BathunaQ.Vitamin C2.Broad bean, French bean and Garden PeaR.Fe & Ca3.Carrot, Spinach and PumpkinS.Protein4.Bitter gourd, Bathuna, Mustard, Tomato
Column IColumn IIP.Vitamin A1.Spinach and BathunaQ.Vitamin C2.Broad bean, French bean and Garden PeaR.Fe & Ca3.Carrot, Spinach and PumpkinS.Protein4.Bitter gourd, Bathuna, Mustard, Tomato
Answer: Option B. -> P – 3, Q – 4, R – 1, S – 2
:
B
IARI, New Delhi has released several vegetable crops that are rich in vitamins and minerals. Vitamin A enriched carrots, spinach and pumpkin;Vitamin C enriched bitter gourd, bathua, mustard and tomato; iron and calcium enriched spinach and bathua and protein enriched beans – broad bean, lablab, french bean and garden peas.
:
B
IARI, New Delhi has released several vegetable crops that are rich in vitamins and minerals. Vitamin A enriched carrots, spinach and pumpkin;Vitamin C enriched bitter gourd, bathua, mustard and tomato; iron and calcium enriched spinach and bathua and protein enriched beans – broad bean, lablab, french bean and garden peas.
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