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
Germplasm collection is a
  • A
    Collection of specimens of all the species of an area in a herbarium or botanical garden
  • B
    Collection of modern varieties of a crop
  • C
    Collection of seeds or pollen of rare and threatened species of a group or area
  • D
    Collection of plants or seeds having diverse alleles of all genes in crop
    Correct
2
Which of the following disease is caused by bacteria?
  • A
    Brown rust of wheat
  • B
    Late blight of potato
  • C
    Red rot of sugarcane
  • D
    Black rot of crucifers
    Correct
3
Which is more suitable for germplasm collection?
  • A
    Tropical area
  • B
    Temperate area
  • C
    Homelands
    Correct
  • D
    Centre of production
4
Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide?
  • A
    Loose smut of wheat
  • B
    Black rust of wheat
  • C
    Downy mildew of grapes
    Correct
  • D
    Bacterial leaf blight of rice
5
Aphids or plant lice cause major damage to the crops. Which variety of crops has been developed for its resistance towards the attack of aphids?
  • A
    Pusa A-4
  • B
    PusaSem 2
  • C
    PusaGaurav
    Correct
  • D
    Pusa Swami
6
The technique of fusion of the protoplasts from two different plant varieties is called
  • A
    Cloning
  • B
    Micro propagation
  • C
    Somatic Hybridisation
    Correct
  • D
    Soma clones
7
Artificial mutation can be created by
  • A
    Gamma radiation
    Correct
  • B
    UV radiation
  • C
    X-ray radiation
  • D
    Alpha radiation
8
In mutation, genetic variations are created through changes in the
  • A
    Number of chromosomes
  • B
    Size of chromosome
  • C
    Ribose sugar
  • D
    Base sequence within genes
    Correct
9
Green revolution was dependent to large extent on plant breeding technique for development of
  • A
    High yielding only
  • B
    High yielding and disease resistant
    Correct
  • C
    Disease resistance only
  • D
    High protein content and high yielding
10
Farmers cannot use seeds of plants showing hybrid vigour in successive years because
  • A
    It is cheaper to purchase fresh seeds.
  • B
    Not allowed to sow their own seeds
  • C
    Dunkel’s proposals
  • D
    Hybrid vigour is lost on inbreeding
    Correct