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Strategies for Enhancement in Food Production · Question 51

AIPMT 2002MCQEasy📈 Topic in 25% papers+4−1
1

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

Answer

(3) Cellular totipotency

Solution

A pollen grain is a single (haploid) cell; on a suitable culture medium it divides and forms an embryo-like structure (embryoid), which grows into a haploid plantlet (anther / pollen culture).

As per NCERT, the capacity to generate a whole plant from any cell / explant is called totipotency.

∴ Embryoid formation from a pollen grain is due to cellular totipotency.

Answer: (3)

AIPMT 2002

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2

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
3

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
4

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
5

Triticale is obtained by crossing wheat with

  1. Barley
  2. Rye
  3. Oat
  4. Maize
Out of syllabusAIPMT 2001
6

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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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)