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NEET • BIOLOGY • STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION
Strategies for enhancement in food production practice · Mixed difficulty
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31
Hard
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Remembering
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Consider the following statements
I. Solid stem in wheat exhibits non-preference by stem sawfly
II. In cotton, smooth leaf and absence of nectar repel bollworms
III. In maize, high aspartic acid, low nitrogen and sugar content protect them from stem borers
Which of the statements given above are correct?
I. Solid stem in wheat exhibits non-preference by stem sawfly
II. In cotton, smooth leaf and absence of nectar repel bollworms
III. In maize, high aspartic acid, low nitrogen and sugar content protect them from stem borers
Which of the statements given above are correct?
View answer and explanation
Correct option: A
I, II and III
Option A (I, II and III) is correct because all three statements regarding pest resistance in wheat, cotton, and maize are accurate.
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Medium
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Remembering
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Bee wax is a product of …….. Importance
View answer and explanation
Correct option: A
Industrial
Option A (Industrial) is correct because bee wax is used in various industrial applications, such as cosmetics, candles, and polishes.
33
Medium
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Remembering
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A group of animals which are related by descent and share many similarities are referred to as
View answer and explanation
Correct option: A
Breed
Option A (Breed) is correct because a breed is a group of animals related by descent and sharing similar characteristics, developed through selective breeding.
34
Easy
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Remembering
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Science of cultivation, breeding, marketing and arrangement of flower is called
View answer and explanation
Correct option: B
Floriculture
Option B (Floriculture) is correct because floriculture specifically deals with the cultivation, breeding, marketing, and arrangement of flowers.
35
Easy
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Understanding
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The deficiency of essential micronutrients specially iron, iodine, zinc and vitamin-A in food
I. increases risk for disease
II. reduces mental ability
III. reduces life span
Choose the correct option
I. increases risk for disease
II. reduces mental ability
III. reduces life span
Choose the correct option
View answer and explanation
Correct option: A
I, II and III
Option A (I, II and III) is correct because deficiencies in essential micronutrients like iron, iodine, zinc, and vitamin A can increase disease risk, reduce mental ability, and shorten lifespan.
36
Medium
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Remembering
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Protoplasts of two different species are fused in
View answer and explanation
Correct option: B
Somatic hybridization
Option B (Somatic hybridization) is correct because somatic hybridization involves the fusion of protoplasts from two different species.
37
Hard
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Remembering
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Turnip mosaic disease is caused by?
View answer and explanation
Correct option: B
Virus
Option B (Virus) is correct because Turnip mosaic disease is caused by a virus.
38
Hard
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Remembering
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A plant cell has potential to develop into a full plant. This is called:
View answer and explanation
Correct option: A
Totipotency
Option A (Totipotency) is correct because totipotency is the ability of a single plant cell to differentiate and develop into a complete, independent plant.
39
Easy
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Remembering
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The mating of more closely related individuals within the same breed for 4-6 generations is known as
View answer and explanation
Correct option: B
Inbreeding
Option B (Inbreeding) is correct because it involves mating closely related individuals within the same breed for several generations to increase homozygosity and develop desired traits.
40
Hard
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Understanding
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Hardening in tissue culture is
View answer and explanation
Correct option: B
Acclimatization of tissue culture plants slowly before growing in the field
Option B (Acclimatization of tissue culture plants slowly before growing in the field) is correct because hardening is the process of gradually acclimating tissue culture plants to external environmental conditions.
41
Medium
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Understanding
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The term ‘totipotency’ refers to
View answer and explanation
Correct option: B
Capability of somatic cells to produce complete organism
Option B (Capability of somatic cells to produce complete organism) is correct because totipotency is the ability of a single somatic cell to differentiate into all cell types and form a complete organism.
42
Hard
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Analyzing
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Assertion (A) : No individual is immortal, except single-celled organisms like Planaria.
Reason (R) : There is no natural death in single – celled organisms.
In the light of above statements. Select the correct option.
Reason (R) : There is no natural death in single – celled organisms.
In the light of above statements. Select the correct option.
View answer and explanation
Correct option: D
(A) is false, (R) is true
Option D ((A) is false, (R) is true) is correct because while single-celled organisms can divide indefinitely, Planaria are multicellular and can regenerate, but individuals are not immortal. Single-celled organisms do not experience natural death.
43
Hard
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Remembering
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High-yielding and disease-resistant wheat varieties are
I. Sonalkia II. Kalyan Sona
III. Jaya IV. Ratna
Choose the correct option
I. Sonalkia II. Kalyan Sona
III. Jaya IV. Ratna
Choose the correct option
View answer and explanation
Correct option: A
I and II
Option A (I and II) is correct because Sonalika and Kalyan Sona are both high-yielding and disease-resistant wheat varieties.
44
Hard
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Understanding
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India’s wheat yield revolution in the 1960s was possible primarily due to
View answer and explanation
Correct option: C
Mutations resulting in plant height reduction
Option C (Mutations resulting in plant height reduction) is correct because the Green Revolution in India was largely due to semi-dwarf wheat varieties, which resulted from mutations.
45
Medium
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Analyzing
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I. In spite of having more than 70% of the world live stock population, the contribution of India and china to the world farm produce is only 25%
II. The productivity per unit of cattle in these countries is very high
II. The productivity per unit of cattle in these countries is very high
View answer and explanation
Correct option: C
I is true and II is false
Option C (I is true and II is false) is correct because while India and China have a large livestock population, their productivity per animal is relatively low.
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46
Medium
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Understanding
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Hybrid vigour is mostly due to
View answer and explanation
Correct option: C
Heterozygosity
Option C (Heterozygosity) is correct because hybrid vigor, or heterosis, is primarily due to the increased heterozygosity in the hybrid offspring, leading to superior traits.
47
Medium
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Remembering
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Microbes like Spirulina can be grown on material like
I. waste water from potato processing plants
II. straw
III. animal manure and sewage
IV. molasses
Choose the correct option
I. waste water from potato processing plants
II. straw
III. animal manure and sewage
IV. molasses
Choose the correct option
View answer and explanation
Correct option: D
I, II, III and IV
Option D (I, II, III and IV) is correct because Spirulina can be grown on all the mentioned materials: waste water from potato processing plants, straw, animal manure and sewage, and molasses.
48
Medium
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Remembering
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Hairy leaves of many plants are associated with providing resistance from
View answer and explanation
Correct option: A
Insect pests
Option A (Insect pests) is correct because hairy leaves provide a physical barrier that deters many insect pests from feeding or laying eggs on the plant.
49
Medium
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Remembering
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Silk is obtained from
View answer and explanation
Correct option: A
Bombyx mori
Option A (Bombyx mori) is correct because silk is obtained from the silkworm Bombyx mori.
50
Easy
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Understanding
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The practices concerned with the improvement in animals husbandry include
View answer and explanation
Correct option: C
Both (1) and (2)
Option C (Both (1) and (2)) is correct because animal husbandry improvement includes both management of farm animals and animal breeding techniques.
51
Easy
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Understanding
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The primary aim of animal breeding is to breed such animals which are able to produce
View answer and explanation
Correct option: D
Both (a) and (b)
Option D (Both (a) and (b)) is correct because the primary aim of animal breeding is to improve both the quality and quantity of the animal products.
52
Medium
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Remembering
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Himgiri is a variety of
View answer and explanation
Correct option: C
Wheat
Option C (Wheat) is correct because Himgiri is a variety of wheat known for its disease resistance.
53
Hard
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Remembering
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Single cell proteins provide food rich in
I. protein
II. minerals
III. fats
IV. carbohydrates and vitamins
Choose the correct option
I. protein
II. minerals
III. fats
IV. carbohydrates and vitamins
Choose the correct option
View answer and explanation
Correct option: D
I, II, III and IV
Option D (I, II, III and IV) is correct because single-cell proteins provide food rich in protein, minerals, fats, carbohydrates, and vitamins.
54
Medium
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Understanding
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Plants in comparison to animals are more rapidly manipulated by genetic engineering. Select out the most probable reason for this
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because totipotency, single-cell regeneration, and tissue culture techniques all contribute to the rapid manipulation of plants through genetic engineering.
55
Hard
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Understanding
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The basis/root of plant breeding programmes related to hybrid plant production is
View answer and explanation
Correct option: D
Collection of variability
Option D (Collection of variability) is correct because it is the fundamental first step in any plant breeding program, providing the raw material for selection and improvement.
56
Medium
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Remembering
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A collection of plants and seeds having diverse alleles of all the genes of a crop is called
View answer and explanation
Correct option: A
Germplasm
Option A (Germplasm) is correct because germplasm refers to the collection of plants and seeds having diverse alleles of all the genes of a crop.
57
Medium
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Understanding
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SCP production is based on industrial effluents so it helps to minimize
View answer and explanation
Correct option: A
Environmental pollution
Option A (Environmental pollution) is correct because SCP production utilizes industrial effluents, thereby minimizing environmental pollution.
58
Easy
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Remembering
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More than 70% of the live stock population is in
View answer and explanation
Correct option: A
India and China
Option A (India and China) is correct because these two countries have the largest livestock populations in the world, accounting for more than 70%.
59
Easy
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Remembering
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GDP stands for
View answer and explanation
Correct option: A
Gross Domestic Product
Option A (Gross Domestic Product) is correct because GDP stands for Gross Domestic Product, which is a measure of the total value of goods and services produced within a country's borders.
60
Hard
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Remembering
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Wonder wheat is new wheat variety developed by
View answer and explanation
Correct option: A
Mexico’s International Wheat and Maize Improvement Centre
Option A (Mexico’s International Wheat and Maize Improvement Centre) is correct because the Wonder wheat variety was developed by Mexico's International Wheat and Maize Improvement Centre (CIMMYT).
Revision notes and key takeaways
Review STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION in your textbook or class notes, then use this set to check your understanding.
Showing 31-60 of 159 questions