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Strategies for Enhancement in Food Production · Question 21

AIPMT 2014MCQMedium📈 Topic in 25% papers+4−1
1

In vitro clonal propagation in plants is characterized by :

  1. Microscopy
  2. Northern blotting
  3. Electrophoresis and HPLC
  4. PCR and RAPD

Answer

(4) PCR and RAPD

Solution

In vitro clonal propagation (micropropagation by tissue culture) produces a large number of plants that should be genetically identical to the parent (somaclones).

⇒ The genetic uniformity (clonal fidelity) of such plants is checked with DNA-based molecular markers.

⇒ PCR-based RAPD (random amplified polymorphic DNA) gives identical band patterns for true-to-type clones and detects any somaclonal variation.

∴ In vitro clonal propagation is characterized by PCR and RAPD.

Answer: (4)

Out of syllabusAIPMT 2014

Keep practising — Strategies for Enhancement in Food Production

2

In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called :

  1. germplasm collection
  2. evaluation and selection of parents
  3. selection of superior recombinants
  4. cross-hybridisation among the selected parents
Out of syllabusNEET 2013
3

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
NEET 2013 (Karnataka)
4

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
NEET 2013 (Karnataka)
5

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
AIPMT 2012 (Mains)
6

Green revolution in India occurred during -

  1. 1980's
  2. 1950's
  3. 1960's
  4. 1970's
Out of syllabusAIPMT 2012 (Mains)
7

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
AIPMT 2012 (Prelims)
8

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

  1. Vascular tissue
  2. Node
  3. Bark
  4. Meristem
AIPMT 2012 (Prelims)
9

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
AIPMT 2011 (Prelims)
10

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 syllabusAIPMT 2011 (Prelims)
11

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

  1. Bajra
  2. Wheat
  3. Maize
  4. Rice
Out of syllabusAIPMT 2011 (Prelims)

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All NEET Botany chapters
Class 11The Living WorldBiological ClassificationPlant KingdomMorphology of Flowering PlantsAnatomy of Flowering PlantsCell: The Unit of LifeCell Cycle and Cell DivisionTransport in PlantsMineral NutritionPhotosynthesis in Higher PlantsRespiration in PlantsPlant Growth and Development
Class 12Reproduction in OrganismsSexual Reproduction in Flowering PlantsPrinciples of Inheritance and VariationMolecular Basis of InheritanceStrategies for Enhancement in Food ProductionMicrobes in Human WelfareOrganisms and PopulationsEcosystemBiodiversity and ConservationEnvironmental Issues
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