MCQs of Biology Class 12 Chapter 9 Strategies for Enhancement in Food Production with answers PDF Download

Biology MCQs for Class 12 Chapter wise with Answers Download Free PDF: MCQs of biology class 12 Chapter 9 Strategies for Enhancement in Food Production is very important for the students who want to get good marks in their CBSE RBSE NCERT Board Exams. Neet MCQ

MCQs of Biology Class 12 Chapter 9 Strategies for Enhancement in Food Production with answers PDF Download

MCQs of Biology Class 12 Chapter 9 Strategies for Enhancement in Food Production with answers PDF Download

Q1. The biggest constraint of plant breeding is

(i) availability of desirable gene in the crop and its wild relatives
(ii) infrastructure
(iii) trained manpower
(iv) transfer of genes from unrelated sources

(i) availability of desirable gene in the crop and its wild relatives


Q2. What is antisense technology?

(i) A cell displaying a foreign antigen used for synthesis of antigens
(ii) Production of somaclonal variants in tissue cultures
(iii) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
(iv) RNA polymerase producing DNA

(iii) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene


Q3. Inbreeding is carried out in animal husbandry because it

(i) increases vigour.
(ii) improves the breed.
(iii) increases heterozygosity.
(iv) increases homozygosity.

(iv) increases homozygosity.


Q4. Which one of the following products of apiculture is used in cosmetics and polishes?

(i) Honey
(ii) Oil
(iii) Wax
(iv) Royal jelly.

(iii) Wax


Q5. Both in callus and suspension culture commonly used auxin is:

(i) NAA
(ii) IEA
(iii) 2-4D
(iv) Abscisic acid

(iii) 2-4D


Q6. The term ‘totipotency’ refers to the capacity of a

(i) cell to generate whole plant
(ii) bud to generate whole plant
(iii) seed to germinate
(iv) cell to enlarge in size

(i) cell to generate whole plant


Q7. The technique of fusion of the protoplasts from two different plant varieties is called?

(i) Cloning
(ii) Micro propagation
(iii) Soma clones
(iv) Somatic Hybridisation

(iv) Somatic Hybridisation


Q8. The species of Saccharum (sugarcane) originally grown in North India.is

(i) S. munja.
(ii) S. officinarum.
(iii) S. barberi.
(iv) All of these.

(iii) S. barberi.


Q9. Which one of the following is a marine fish?

(i) Rohu
(ii) Hilsa
(iii) Catla
(iv) Common carp.

(ii) Hilsa


Q10. The world’s highly prized wool yielding ‘Pashmina’ breed is :

(i) Sheep
(ii) Goat
(iii) Goat-sheep cross
(iv) Mashmir sheep-Afghan sheep cross

(ii) Goat


Q11. The use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed

(i) recombinant DNA technology
(ii) transgenic mechanism
(iii) mutation breeding
(iv) gene therapy

(iii) mutation breeding


Q12. In maize, hybrid vigour is exploited by

(i) crossing of two inbred parental lines
(ii) harvesting seeds from the most productive plants
(iii) inducing mutations
(iv) bombarding the seeds with DNA

(i) crossing of two inbred parental lines


Q13. Viral disease-free plants are obtained through

(i) anther culture.
(ii) shoot meristem culture.
(iii) ovary culture.
(iv) leaf-cell culture.

(ii) shoot meristem culture.


(i) breed
(ii) race
(iii) variety
(iv) species.

(i) breed


Q15. The best milk breed in the world is:

(i) Chittgong
(ii) Deoni
(iii) Holstein-Friesian
(iv) Sindhi

(iii) Holstein-Friesian


Q16. Lysine and tryptophan are

(i) proteins
(ii) non-essential amino acids
(iii) essential amino acids
(iv) aromatic amino acids

(iii) essential amino acids


Q17. Microorganism used as biopesticides is

(i) Fungi
(ii) Protozoa
(iii) Bacteria
(iv) All of the above

(iv) All of the above


(i) breed.
(ii) race.
(iii) variety.
(iv) species.

(i) breed.


Q19. More than 70 percent of livestock population is in:

(i) Denmark
(ii) India
(iii) China
(iv) India and China.

(iv) India and China.


Q20. Zoological name of Indian buffalo is:

(i) Bubalus bubalus
(ii) Bos indicus
(iii) Bos taurus
(iv) Gallusgallus

(i) Bubalus bubalus


Q21. Protoplast is

(i) another name for protoplasm
(ii) an animal cell
(iii) a plant cell without a cell wall
(iv) a plant cell

(iii) a plant cell without a cell wall


Q22. Breeding crops with higher levels of vitamins and minerals or higher protein and healthier fats is called?

(i) Single cell protein
(ii) Tissue culture
(iii) Gametogenesis
(iv) Bio-fortification

(iv) Bio-fortification


Q23. Which one of the following combination would a sugarcane farmer look for in the sugarcane crop?

(i) Thick stem, long intemodes, high sugar content and disease resistant.
(ii) Thick stem, high sugar content and profuse flowering.
(iii) Thick stem, short intemodes, high sugar content, disease resistant.
(iv) Thick stem, low sugar content, disease resistant.

(i) Thick stem, long intemodes, high sugar content and disease resistant.


Q24. 33 % of India’s Gross Domestic Product comes from

(i) industry
(ii) agriculture
(iii) export
(iv) small-scale cottage industries.

(ii) agriculture


Q25. Somatic hybridization can be done by:

(i) By Protoplast fusion
(ii) By Haploid anther
(iii) By Cell culture
(iv) By Totipotency

(i) By Protoplast fusion


Q26. Which of the following can yield a completely haploid plant?

(i) Root tip
(ii) Anther
(iii) Carpel
(iv) Stem apical meristem

(ii) Anther


Q27. Procedure between formation of plantlets in culture and establishment of seedlings in the field is called?

(i) Regeneration
(ii) Somatic transfer
(iii) Transgene
(iv) Hardening

(iv) Hardening


Q28. A collection of all the alleles of all the genes : of a crop plant is called

(i) germplasm collection.
(ii) protoplasm collection.
(iii) herbarium.
(iv) somaclonal collection.

(i) germplasm collection.


Q29. Sonalika and Kalyan Sona are varieties of:

(i) wheat
(ii) rice
(iii) millet
(iv) tobacco.

(i) wheat


Q30. India’s w heat yield revolution in the 1986s was possible primarily due to:

(i) Mutations resulting in the plant height reduction
(ii) Quantitative trait mutations
(iii) Hybrid seeds
(iv) Increased chlorophyll content

(iii) Hybrid seeds


Q31. Which one of the following products of apiculture is used in cosmetics and polishes ?

(i) Honey
(ii) Oil
(iii) Wax
(iv) Royal jelly

(iii) Wax


Q32. Inbreeding is necessary if you want to evolve a

(i) Better variety
(ii) Heterozygosis
(iii) Pure line
(iv) GM food

(iii) Pure line


Q33. Which one of the following is not a fungal disease?

(i) Rust of wheat
(ii) Smut of Bajra
(iii) Black rot of crucifers
(iv) Red rot of sugarcane.

(iii) Black rot of crucifers


Q34. One of the following is a disease of poultry:

(i) Anthrax
(ii) Pebrine disease
(iii) Ranikhet disease
(iv) Foot and mouth disease

(iii) Ranikhet disease


Q35. Which of the following is the “bird flu virus” ?

(i) H5N1
(ii) Haemophilus influenzae
(iii) HIV
(iv) Rhino virus

(i) H5N1


Q36. Which variety of wheat is used as donor for high protein?

(i) IR-8
(ii) Sonalika
(iii) Atlas 66
(iv) Himgiri

(iii) Atlas 66


Q37. Fungicides and antibiotics are chemicals that:

(i) enhance yield and disease resistance
(ii) kill pathogenic fungi and bacteria, respectively
(iii) kill all pathogenic microbes
(iv) kill pathogenic bacteria and fungi respectively.

(ii) kill pathogenic fungi and bacteria, respectively


Q38. The technique of obtaining large number of plantlets by tissue culture method is called :

(i) Organ culture
(ii) Micro-propagation
(iii) Macro-propagation
(iv) Plantlet culture

(ii) Micro-propagation


Q39. Which of the following is an improved variety of chicken ?

(i) Jersey
(ii) Leghorn
(iii) Himgiri
(iv) Kalyan Sona

(ii) Leghorn

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