Improvement In Food Production Test

Improvement In Food Production

This is online test 01 for CBSE class 12 Biology Strategies for Enhancement in Food Production (Improvement in food production).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Best method to increase crop yield is
  • A
    Sowing seeds of improved varieties
    Correct
  • B
    Using more fertilizers
  • C
    Eradication of weeds
  • D
    Using tractors
2
The superiority of the hybrid over either parent in one or more traits is
  • A
    None of these
  • B
    Transformation
  • C
    Metamorphosis
  • D
    Heterosis
    Correct
3
Cloning is not meant for
  • A
    Production of HGH gene in E. coli
  • B
    Increasing production
    Correct
  • C
    To preserve the genotype of organism
  • D
    To replace the original one
4
Taichung Native-1”, a rice variety was introduced in India from
  • A
    China
  • B
    United nations
  • C
    Philippines
  • D
    Taiwan
    Correct
5
Picking up plants with superior phenotype for further propagation is
  • A
    Mass selection
    Correct
  • B
    Hybrid vigour
  • C
    Introduction
  • D
    Pure line selection
6
Polyploidy is induced through
  • A
    Colchicine
    Correct
  • B
    Mutagenic chemicals
  • C
    Irradiation
  • D
    Ethylene
7
Which of the following scientist’s name is not correctly matched with the theory by them?
  • A
    Mendel – Inheritance of acquired characters
    Correct
  • B
    De Vries – Theory of continuity
  • C
    Weismann – Theory of continuity of Germplasm
  • D
    Pasteur – Theory of Pangenesis
8
The method of producing thousands of plants through tissue culture is called
  • A
    Bio magnification
  • B
    Micro propagation
    Correct
  • C
    Somatic Hybridisation
  • D
    Bio-fortification
9
Main objective of production or use of herbicide resistant genetically modified crops is to
  • A
    Eliminate weeds from the field without the use of manual labor
  • B
    Eliminate weeds from the field without the use of herbicides
  • C
    Reduce herbicide accumulation in food particles for health safety
    Correct
  • D
    Encourage eco-friendly herbicides
10
The best way to obtain bacteria and viruses free plants through tissue culture is
  • A
    Seed germination after gamma irradiation
  • B
    Micro propagation
  • C
    Seed germination under aseptic conditions
  • D
    Shoot apex or meristem culture
    Correct