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Strategies for Enhancement in Food Production

NEET 2013 (Karnataka)MCQEasy📈 Topic in 25% papers+4−1
Ques. 1NEET 2013 (Karnataka)

Tissue culture technique can produce infinite number of new plants from a small parental tissue. The economic importance of the technique is in raising:

  1. development of new species
  2. genetically uniform population identical to the original parent
  3. variants through picking up somaclonal variations
  4. homozygous diploid plants

Answer

(2) genetically uniform population identical to the original parent

Solution

As per NCERT, the method of producing thousands of plants through tissue culture is called micropropagation.

⇒ Each of these plants is genetically identical to the original plant from which they were grown, i.e. they are somaclones.

⇒ Hence the economic importance of the technique lies in raising a large, genetically uniform population identical to the original parent in a short time (e.g. tomato, banana, apple).

Answer: (2)

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Ques. 2NEET 2013 (Karnataka)

Which of the following statements is not true about somatic embryogenesis ?

  1. Somatic embryos can develop from microspores
  2. Somatic embryo is induced usually by an auxin such as 2,4-D
  3. The pattern of development of a somatic embryo is comparable to that of a zygotic embryo
  4. A somatic embryo develops from a somatic cell
Ques. 3AIPMT 2012 (Mains)

Consider the following four statements (a-d) and select the option which includes all the correct ones only :

  1. Statements B, C and D
  2. Statements C, D
  3. Statements A, C and D
  4. Statements A, B
Ques. 4AIPMT 2012 (Mains)

Green revolution in India occurred during -

  1. 1980's
  2. 1950's
  3. 1960's
  4. 1970's
Out of syllabus
Ques. 5AIPMT 2012 (Prelims)

Which one of the following is a case of wrong matching?

  1. Somatic hybridization - Fusion of two diverse cells
  2. Callus - Unorganised mass of cells produced in tissue culture
  3. Vector DNA - Site for tRNA synthesis
  4. Micropropagation - In vitro production of plants in large numbers
Ques. 6AIPMT 2012 (Prelims)

Which part would be most suitable for raising virus-free plants for micropropagation?

  1. Vascular tissue
  2. Node
  3. Bark
  4. Meristem
Ques. 7AIPMT 2011 (Prelims)

When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both parents. This phenomenon is called :

  1. Splicing
  2. Transformation
  3. Heterosis
  4. Metamorphosis
Ques. 8AIPMT 2011 (Prelims)

A collection of plants and seeds having diverse alleles of all the genes of a crop is called :

  1. Gene library
  2. Genome
  3. Germplasm
  4. Herbarium
Out of syllabus
Ques. 9AIPMT 2011 (Prelims)

"Jaya" and "Ratna" developed for green revolution in India are the varieties of :

  1. Bajra
  2. Wheat
  3. Maize
  4. Rice
Out of syllabus
Ques. 10AIPMT 2011 (Prelims)

'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of :

  1. Chilli
  2. Sugarcane
  3. Wheat
  4. Maize
Out of syllabus
Ques. 11AIPMT 2010 (Prelims)

Breeding of crops with high levels of minerals, vitamins and proteins is called –

  1. Biofortification
  2. Biomagnification
  3. Micropropagation
  4. Somatic hybridisation

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