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Strategies for Enhancement in Food Production · Question 46

AIPMT 2005MCQEasy📈 Topic in 0% papers+4−1
1

Which of the following is generally used for induced mutagenesis in crop plants ?

  1. UV (260 nm)
  2. Alpha particles
  3. Gamma rays (from cobalt-60)
  4. X-rays

Answer

(3) Gamma rays (from cobalt-60)

Solution

As per NCERT, mutation is induced artificially by using chemicals or radiations (like gamma radiations), and plants having the desirable character are selected (mutation breeding).

∵ Gamma rays from cobalt-60 are highly penetrating and easy to use on seeds and plants, they are the radiation generally used for induced mutagenesis in crop plants.

Answer: (3)

Out of syllabusAIPMT 2005

Keep practising — Strategies for Enhancement in Food Production

2

The name of Norman Borlaug is associated with-

  1. Blue Revolution
  2. Yellow Revolution
  3. Green Revolution
  4. White Revolution
Out of syllabusAIPMT 2005
3

The technique of obtaining large number of plantlets by tissue culture method is called –

  1. Macropropagation
  2. Organ culture
  3. Plantlet culture
  4. Micropropagation
Out of syllabusAIPMT 2004
4

India's wheat yield revolution in the 1960s was possible primarily due to :-

  1. Hybrid seeds
  2. Quantitative trait mutations
  3. Increased chlorophyll content
  4. Mutations resulting in plant height reduction
Out of syllabusAIPMT 2004
5

Cellular totipotency is demonstrated by :

  1. All eukaryotic cells
  2. Only gymnosperm cells
  3. Only bacterial cells
  4. All plant cells
AIPMT 2003
6

What is the reason of formation of embryoid from pollen grain in tissue culture medium ?

  1. Double fertilization
  2. Test tube culture
  3. Cellular totipotency
  4. Organogenesis
AIPMT 2002
7

Which of the following crops have been brought to India from New world ?

  1. Mango, tea
  2. Coffee
  3. Tea, rubber, mango
  4. Cashewnut, potato, rubber
AIPMT 2002
8

Which statement is correct about centre of origin of plant ?

  1. Climatic condition more favourable
  2. More diversity in improved variety
  3. None
  4. Frequency of dominant gene is more
AIPMT 2001
9

Before the European invasion, which vegetables were absent in India?

  1. Simla mirch and Brinjal
  2. Bitter gourd
  3. Maize and chichinda
  4. Potato and Tomato
Out of syllabusAIPMT 2001
10

Triticale is obtained by crossing wheat with

  1. Barley
  2. Rye
  3. Oat
  4. Maize
Out of syllabusAIPMT 2001
11

Which statement is correct?

  1. Workers are the smallest of the three castes
  2. Wax is waste material of honey bee
  3. Drone of honey bee is diploid
  4. A. indica is largest wild honey bee
Out of syllabusAIPMT 2000

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