CBSE Class 12 Biology - MCQ and Online Tests - Unit 9 - Strategies for Enhancement in Food Production

CBSE Class 12 Biology – MCQ and Online Tests – Unit 9 – Strategies for Enhancement in Food Production

Every year CBSE conducts board exams for 12th standard. These exams are very competitive to all the students. So our website provides online tests for all the 12th subjects. These tests are also very effective and useful for those who preparing for competitive exams like NEET, JEE, CA etc. It can boost their preparation level and confidence level by attempting these chapter wise online tests.

These online tests are based on latest CBSE Class 12 syllabus. While attempting these our students can identify the weak lessons and continuously practice those lessons for attaining high marks. It also helps to revise the NCERT textbooks thoroughly.

 

CBSE Class 12 Biology – MCQ and Online Tests – Unit 9 – Strategies for Enhancement in Food Production

Question 1.
India’s w heat yield revolution in the 1986s was possible primarily due to:
(a) Mutations resulting in the plant height reduction
(b) Quantitative trait mutations
(c) Hybrid seeds
(d) Increased chlorophyll content

Answer

Answer: (c) Hybrid seeds

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Question 2.
Choose the cat fish from the following:
(a) Katla Katla
(b) Wallage attu
(c) Labeo rohita
(d) Cirrhinus mrigaja

Answer

Answer: (b) Wallage attu

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Question 3.
Zoological name of Indian buffalo is:
(a) Bubalus bubalus
(b) Bos indicus
(c) Bos taurus
(d) Gallusgallus

Answer

Answer: (a) Bubalus bubalus

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Question 4.
Most cultivated plants are:
(a) Autopolyploid
(b) Allopolyploid
(c) Aneuploids
(d) Haploids

Answer

Answer: (b) Allopolyploid

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Question 5.
Both in callus and suspension culture commonly used auxin is:
(a) NAA
(b) IEA
(c) 2-4D
(d) Abscisic acid

Answer

Answer: (c) 2-4D

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Question 6.
One of the following is a disease of poultry:
(a) Anthrax
(b) Pebrine disease
(c) Ranikhet disease
(d) Foot and mouth disease

Answer

Answer: (c) Ranikhet disease

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Question 7.
Triticale first main-made corral crop has been obtained by crossing wheat with
(a) Rye
(b) Pearl mille
(c) Sugarcane
(d) Barley

Answer

Answer: (a) Rye

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Question 8.
Somatic hybridization can be done by:
(a) By Protoplast fusion
(b) By Haploid anther
(c) By Cell culture
(d) By Totipotency

Answer

Answer: (a) By Protoplast fusion

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Question 9.
Norman Borlaugh known as “Father of Green Revolution” has developed new cultivating variety of:
(a) Paddy
(b) Rice
(c) Wheat
(d) Sugarcane

Answer

Answer: (c) Wheat

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Question 10.
The best milk breed in the world is:
(a) Chittgong
(b) Deoni
(c) Holstein-Friesian
(d) Sindhi

Answer

Answer: (c) Holstein-Friesian

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Question 11.
Most nutritious among the following is:
(a) What
(b) Maize
(c) Pearley
(d) Rice

Answer

Answer: (c) Pearley

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Question 12.
The technique of obtaining large number of plantlets by tissue culture method is called :
(a) Organ culture
(b) Micro-propagation
(c) Macro-propagation
(d) Plantlet culture

Answer

Answer: (b) Micro-propagation

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Question 13.
The world’s highly prized wool yielding ‘Pashmina’ breed is :
(a) Sheep
(b) Goat
(c) Goat-sheep cross
(d) Mashmir sheep-Afghan sheep cross

Answer

Answer: (b) Goat

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Question 14.
Hybrid vagour is induced by:
(a) By Clonal selection
(b) By Crossing of plant
(c) By crossing of two plants
(d) By Species differentiation

Answer

Answer: (c) By crossing of two plants

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Question 15.
There crops that contribute maximum to global food grain production are :
(a) Wheat, rice and maize
(b) Wheat rice and barley
(c) Wheat, maize and sorghum
(d) Rice, maize and sorghum

Answer

Answer: (a) Wheat, rice and maize

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