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Strategies for Enhancement in Food Production · Question 16

AIPMT 2015MCQEasy📈 Topic in 25% papers+4−1
1

Outbreeding is an important strategy of animal husbandry because it :

  1. helps in accumulation of superior genes.
  2. is useful in overcoming inbreeding depression.
  3. is useful in producing purelines of animals.
  4. exposes harmful recessive genes that are eliminated by selection.

Answer

(2) is useful in overcoming inbreeding depression.

Solution

Accumulation of superior genes, development of purelines and exposure of harmful recessive genes (eliminated by selection) are advantages of inbreeding.

As per NCERT, a single outcross (a type of outbreeding) often helps to overcome inbreeding depression.

Answer: (2)

Out of syllabusAIPMT 2015

Keep practising — Strategies for Enhancement in Food Production

2

A protoplast is a cell -

  1. undergoing division
  2. without plasma membrane
  3. without nucleus
  4. without cell wall
Out of syllabusAIPMT 2015
3

A technique of micropropagation is

  1. somatic embryogenesis
  2. embryo rescue
  3. protoplast fusion
  4. somatic hybridisation
Out of syllabusAIPMT 2015 (Cancelled)
4

Which of the following enhances or induces fusion of protoplasts ?

  1. Sodium chloride and potassium chloride
  2. IAA and kinetin
  3. Polyethylene glycol and sodium nitrate
  4. IAA and gibberellins
Out of syllabusAIPMT 2015 (Cancelled)
5

To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken ?

  1. Epidermis only
  2. Palisade parenchyma
  3. Both apical and axillary meristems
  4. Apical meristem only
AIPMT 2014
6

In vitro clonal propagation in plants is characterized by :

  1. Microscopy
  2. Northern blotting
  3. Electrophoresis and HPLC
  4. PCR and RAPD
Out of syllabusAIPMT 2014
7

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
8

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)
9

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)
10

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)
11

Green revolution in India occurred during -

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

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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
Other chaptersBiomolecules (Biology)