In This Post we are providing Chapter-9 Strategies for Enhancement of Food Production NCERT MCQ for Class 12 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON STRATEGIES FOR ENHANCEMENT OF FOOD PRODUCTION
Question 1: Germplasm can be collected from many sources, where the preferred source to develop disease resistance is
- a) Wild relative
- b) Plantlet from culture experiment
- c) Improved variety
- d) Local variety
Answer: Wild relative
Question 2: Emasculation (removal of anthers) is required for
- a) Selective hybridization
- b) Inbreeding
- c) Pure lines
- d) Self pollination
Answer: Selective hybridisation
Question 3: Select the incorrect statement w.r.t. plant breeding
- a) Progeny plants with superior characters are self-pollinated for several generations till they reach a state of heterozygosity
- b) In many crops pre-existing genetic variability is available from wild relatives of the crop
- c) Hybrid breeding have led to development of several high yielding varieties resistant to water stress
- d) Conventional method of breeding for disease resistance is that of hybridization and selection
Answer: Progeny plants with superior characters are self-pollinated for several generations till they reach a state of heterozygosity
Question 4: Which of the following is an example of intergeneric hybridization?
- a) More than one option is correct
- b) Raphanobrassica
- c) Triticale
- d) ADT-37
Answer: More than one option is correct
Question 5: Gene responsible for dwarfing in wheat is
- a) norin-10
- b) cry gene
- c) nod gene
- d) dee-geo-woo-gen
Answer: norin-10
Question 6: The semi-dwarf wheat varieties brought from Mexico into India were
- a) Sonara-64 and Lerma Rojo-64
- b) Sonalika and NP-836
- c) Sharbati Sonara and Pusa Lerma
- d) Sonara-64 and HUW-468
Answer: Sonara-64 and Lerma Rojo-64
Question 7: Which of the following is a chemical mutagen?
- a) Ethyl methane sulphonate and Sodium azide
- b) Ethyl methane sulphonate and X-rays
- c) Sodium azide and UV rays
- d) X-rays, gamma rays and UV rays
Answer: Ethyl methane sulphonate and Sodium azide
Question 8: Bread wheat is
- a) T. aestivum
- b) T. durum
- c) Secale cereale
- d) Triticum turgidum
Answer: T. aestivum
Question 9: Late blight of potato is caused by the fungus
- a) Phytophthora infestans
- b) Alternaria solani
- c) Fusarium udum
- d) Plasmopara viticola
Answer: Phytophthora infestans
Question 10: The use of colchicine is involved in production of
- a) Polyploids
- b) Hybrids
- c) Haploids
- d) Somaclonal variations
Answer: Polyploids
Question 11: Large numbers of new varieties have been developed through mutation breeding and it has been used commonly in
- a) Self pollinating crops
- b) Allogamous plants
- c) Cross pollinating crops
- d) More than one option is correct
Answer: Self pollinating crops
Question 12: Which one of the following is not an improved variety of flat bean?
- a) Pusa sawani
- b) Pusa sem 3
- c) Pusa sem 2
- d) None of these
Answer: Pusa sawani
Question 13: Maize is rich in
- a) Thiamine
- b) Lysine
- c) Tryptophan
- d) Alanine
Answer: Thiamine
Question 14: Anti-nutritional neurotoxic factor called cyan alanine is found in
- a) Seeds of khesari
- b) Kidney bean
- c) Almond
- d) Brassica oleracea
Answer: Seeds of khesari
Question 15: Atlas 66 variety of wheat was developed for
- a) High protein content
- b) Checking grassy stunt virus
- c) Scented grains
- d) Vitamin C
Answer: High protein content
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