Chapter 9 Strategies For Enhancement In Food Production

Question 1. The chances of contacting bird flu from a properly cooked (above $100^{\circ}$C) chicken and egg are:

a. very high

b. high

c. moderate

d. negligible

Question 2. A group of animals which are related by descent and share many similarities are referred to as:

a. breed

b. race

c. variety

d. species

Question 3. Inbreeding is carried out in animal husbandry because it:

a. increases vigour

b. improves the breed

c. increases heterozygosity

d. increases homozygosity

Question 4. Sonalika and Kalyan Sona are varieties of:

a. wheat

b. rice

c. millet

d. tobacco

Question 5. Which one of the following is not a fungal disease?

a. Rust of wheat

b. Smut of Bajra

c. Black rot of crucifers

d. Red rot of sugarcane

Question 6. In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because:

a. the dividing cells are virus resistant

b. meristems have anti viral compounds

c. the cell division of meristems are faster than the rate of viral multiplication

d. Viruses cannot multiply within meristem cell (s).

Question 7. Several South Indian states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of

a. shorter rice plant

b. better irrigation facilities

c. early yielding rice variety

d. disease resistant rice variety.

Question 8. Which one of the following combination would a sugarcane farmer look for in the sugarcane crop?

a. Thick stem, long internodes, high sugar content and disease resistant

b. Thick stem, high sugar content and profuse flowering

c. Thick stem, short internodes, high sugar content, disease resistant

d. Thick stem, low sugar, conten, disease resistant

Question 9. Fungicides and antibiotics are chemicals that:

a. enhance yield and disease resistance

b. kill pathogenic fungi and bacteria, respectively

c. kill all pathogenic microbes

d. kill pathogenic bacteria and fungi respectively.

Question 10. Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed:

a. recombinant DNA technology

b. transgenic mechanism

c. mutation breeding

d. gene therapy.

Question 11. The scientific process by which crop plants are enriched with certain desirable nutrients is called:

a. crop protection

b. breeding

c. bio-fortification

d. bio-remediation.

Question 12. The term ‘totipotency’ refers to the capacity of a:

a. cell to generate whole plant

b. bud to generate whole plant

c. seed to germinate

d. cell to enlarge in size.

Question 13. Given below are a few statements regarding somatic hybridization. Choose the correct statements.

(i) protoplasts of different cells of the same plant are fused

(ii) protoplasts from cells of different species can be fused

(iii) treatment of cells with cellulase and pectinase is mandatory

(iv) the hybrid protoplast contains characters of only one parental protoplast.

a. (i) and (iii)

b. (i) and (ii)

c. (i) and (iv)

d. (ii) and (iii)

Question 14. An explant is:

a. dead plant

b. part of the plant

c. part of the plant used in tissue culture

d. part of the plant that expresses a specific gene.

Question 15. The biggest constraint of plant breeding is:

a. availability of desirable gene in the crop and its wild relatives

b. infrastructure

c. trained manpower

d. transfer of genes from unrelated sources.

Question 16. Lysine and tryptophan are:

a. proteins

b. non-essential amino acids

c. essential amino acids

d. aromatic amino acids.

Question 17. Micro-propagation is:

a. propagation of microbes in vitro

b. propagation of plants in vitro

c. propagation of cells in vitro

d. growing plants on smaller scale.

Question 18. Protoplast is:

a. another name for protoplasm

b. an animal cell

c. a plant cell without a cell wall

d. a plant cell.

Question 19. To isolate protoplast, one needs:

a. pectinase

b. cellulase

c. both pectinase and cellulase

d. chitinase.

Question 20. Which one of the following is a marine fish:

a. Rohu

b. Hilsa

c. Catla

d. Common Carp.

Question 21. Which one of the following products of apiculture is used in cosmetics and polishes:

a. honey

b. propolis

c. wax

d. Royal jelly

Question 22. More than 70 per cent of livestock population is found in:

a. Denmark

b. India

c. China

d. India and China.

Question 23. The agriculture sector of India employs about:

a. 50 per cent of the population

b. 70 per cent of the population

c. 30 per cent of the population

d. 60 per cent of the population.

Question 24. 33 percent of India’s Gross Domestic Product comes from

a. Industry

b. Agriculture

c. Export

d. Small-scale cottage industries.

Question 25. A collection of all the alleles of all the genes of a crop plant is called:

a. germplasm collection

b. protoplasm collection

c. herbarium

d. somaclonal collection.

Question 1. Millions of chicken were killed in West Bengal, Assam, Orissa and Maharashtra recently. What was the reason?

Question 2. Can gamma rays used for crop improvement programmes prove to be harmful for health? Discuss.

Question 3. In animal husbandry, if two closely related animals are mated for a few generations, it results in loss of fertility and vigour. Why is this so?

Question 4. In the area of plant breeding, it is important not only to preserve the seeds of the variety being cultivated, but also to preserve all its wild relatives. Explain with a suitable example.

Question 5. Name a man-made cereal? Trace how it was developed and where is it used?

Question 6. Fill in the blanks

Question 7. A few statements are given below followed by a set of terms in a box. Pick the correct term and write it against the appropriate statement

a. Mating of closely related individuals within the same breed

b. Mating of animals of same breed but having no common ancestors on either side for 4-6 generations

c. Mating of animals of two different species

d. Breeding of animals belonging to different breeds

(i) Cross breeding, (ii) Inter-specific hybridization, (iii) Out breeding, (iv) Out crossing, (v) Inbreeding

Question 8. What is meant by ‘hidden hunger’?

Question 9. Why are plants obtained by protoplast culture called somatic hybrids?

Question 10. What is protoplast fusion?

Question 11. Why is it easier to culture meristems compared to permanent tissues?

Question 12. Why are proteins synthesised from Spirulina called single cell proteins?

Question 13. A person who is allergic to pulses was advised to take a capsule of Spirulina daily. Give the reasons for the advise.

Question 14. What is aquaculture? Give example of an animal that can be multiplied by aquaculture.

Question 15. What are the duties of a veterinary doctor in management of a poultry farm?

Question 16. Would it be wrong to call plants obtained through micro-propagation as ‘clones’? Comment.

Question 17. How is a somatic hybrid different from a hybrid?

Question 18. What is emasculation? Why and when is it done?

Question 19. Discuss the two main limitations of plant hybridization programme.

Question 20. Interspecific crosses are rare in nature and intergeneric crosses almost unknown. Why?

Question 21. Differentiate between pisciculture and aquaculture.

Question 22. Give two important contributions of Dr. M. S. Swaminathan.

Question 23. The term ‘desirable trait’ can mean different things for different plants. Justify the statement with suitable examples.

Question 1. You are planning to set up a Dairy Farm. Describe the various aspects you would consider before you start the venture.

Question 2. It is said, that diseases are spreading faster due to globalisation and increased movement of people. Justify the statement taking the example of H5N1 virus.

Question 3. Explain the concept of the Blue Revolution.

Question 4. A farmer was facing the problem of low yield from his farm. He was advised to keep a beehive in the vicinity. Why? How would the beehive help in enhancing yield?

Question 5. Life style diseases are increasing alarmingly in India. We are also dealing with large scale malnutrition in the population. Is there any method by which we can address both of these problems together?

Question 6. How can we improve the success rate of fertilisation during artificial insemination in animal husbandry programmes?

Question 7. What is meant by germplasm collection? What are its benefits?

Question 8. Name the improved characteristics of wheat that helped India to achieve green revolution.

Question 9. Suggest some of the features of plants that will prevent insect and pest infestation

Question 10. It is easier to culture plant cells in vitro as compared to animal cells. Why?

Question 11. The culture medium (nutrient medium) can be referred to as a ‘highly enriched laboratory soil. Justify the statement.

Question 12. Is there any relationship between dedifferentiation and the higher degree of success achieved in plant tissue culture experiments?

Question 13. “Give me a living cell of any plant and I will give you a thousand plants of the same type” Is this only a slogan or is it scientifically possible? Write your comments and justify them.

Question 14. What is the difference between a breed and a species? Give an example for each category.

Question 15. Plants raised through tissue cultures are clones of the ‘parent’ plant. Discuss the utility of these plants.

Question 16. Discuss the importance of testing of new plant varieties in a geographically vast country like India.

Question 17. Define the term ‘stress’ for plants. Discuss briefly the two types of stress encountered by plants.

Question 18. Discuss natural selection and artificial selection. What are the implications of the latter on the process of evolution?

Question 19. Discuss briefly how pure lines are created in animal husbandry.

Question 20. What are the physical barriers of a cell in the protoplast fusion experiment? How are the barriers overcome?

Question 21. Give few examples of biofortified crops. What benefits do they offer to the society?

Question 1. You are a Botanist working in the area of plant breeding. Describe the various steps that you will undertake to release a new variety.

Question 2. (a) The shift from grain to meat diets creates more demands for cereals. Why?

(b) A 250 kg cow produces 200 g of protein per day but 250 g of Methylophillus methylotrophus can produce 25 tonnes of protein Name this emerging area of research. Explain its benefits.

Question 3. What are the advantages of tissue culture methods over conventional method of plant breeding in crop improvement programmes?

Question 4. ‘Modern methods of breeding animals and plants can alleviate the global food shortage’. Comment on the statement and give suitable examples.

Question 5. Does apiculture offer multiple advantages to farmers? List its advantages if it is located near a place of commercial flower cultivation.

Question 6. (a) Mutations are beneficial for plant breeding. Taking an example, justify the statement.

(b) Discuss briefly the technology that made us self-sufficient in food production.

Question 7. Discuss how the property of plant cell totipotency has been utilised for plant propagation and improvement

Question 8. What are three options to increase food production? Discuss each giving the salient features, merits and demerits.