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Strategies for Enhancement in Food Production

NEET (UG) 2021MCQEasyNot asked in last 5 yrs+4−1
Ques. 1NEET (UG) 2021

Mutations in plant cells can be induced by :

  1. Zeatin
  2. Kinetin
  3. Infrared rays
  4. Gamma rays

Answer

(4) Gamma rays

Solution

As per NCERT, mutation is the process by which genetic variations are created through changes in the base sequence within genes, and mutations can be induced artificially by chemicals or radiations such as gamma rays (mutation breeding, e.g. mung bean resistant to yellow mosaic virus).

Zeatin and kinetin are cytokinins (plant growth regulators), and infrared rays are non-ionising (heat) radiations; they do not induce mutations.

Answer: (4)

Out of syllabus

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Ques. 2NEET (UG) 2021

Match List-I with List-II. Choose the correct answer from the options given below.

  1. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
  2. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  3. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
  4. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
Out of syllabus
Ques. 3NEET (UG) 2021

Which of the following is not an objective of Biofortification of crops?

  1. Improve micronutrient and mineral content
  2. Improve protein content
  3. Improve resistance to diseases
  4. Improve vitamin content
Out of syllabus
Ques. 4NEET (UG) 2021

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?

  1. Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage
  2. Cow is administered hormone having LH like activity for super ovulation
  3. Cow yields about 6-8 eggs at a time
  4. Cow is fertilized by artificial insemination
Out of syllabus
Ques. 5NEET (UG) 2020

By which method was a new breed ‘Hisardale’ of sheep formed by using Bikaneri ewes and Merino rams?

  1. Out crossing
  2. Mutational breeding
  3. Inbreeding
  4. Cross breeding
Out of syllabus
Ques. 6NEET (UG) 2019

Select the incorrect statement.

  1. Inbreeding selects harmful recessive genes that reduce fertility and productivity.
  2. Inbreeding helps in accumulation of superior genes and elimination of undesirable genes.
  3. Inbreeding increases homozygosity.
  4. Inbreeding is essential to evolve purelines in any animal.
Out of syllabus
Ques. 7NEET 2017

Homozygous purelines in cattle can be obtained by :

  1. mating of related individuals of same breed
  2. mating of individuals of different species
  3. mating of individuals of different breed
  4. mating of unrelated individuals of same breed
Out of syllabus
Ques. 8NEET 2016 (Phase 2)

Interspecific hybridisation is the mating of

  1. animals within same breed without having common ancestors
  2. superior males and females of different breeds
  3. more closely related individuals within same breed for 4-6 generations
  4. two different related species
Out of syllabus
Ques. 9NEET 2016 (Phase 2)

Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids ?

  1. Mangur
  2. Mystus
  3. Mackerel
  4. Mrigala
Out of syllabus
Ques. 10AIPMT 2015

Outbreeding is an important strategy of animal husbandry because it :

  1. helps in accumulation of superior genes.
  2. is useful in overcoming inbreeding depression.
  3. is useful in producing purelines of animals.
  4. exposes harmful recessive genes that are eliminated by selection.
Out of syllabus
Ques. 11AIPMT 2015

A protoplast is a cell -

  1. undergoing division
  2. without plasma membrane
  3. without nucleus
  4. without cell wall
Out of syllabus

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