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Food Production and Breeding (Class - XII)

Tissue culture Tissue CultureTissue CulturePlant Breeding

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Who first isolated a single plant cell for culturing?

  1. Muir
  2. Steward and Shaanz
  3. Haberlandt
  4. Gautheret
Question 2 Multiple Choice (Single Answer)

What is/are the source(s) of protoplast in protoplast culture technique?

  1. Sepals
  2. Leaves
  3. Buds
  4. Root meristem
Question 3 Multiple Choice (Single Answer)

What is invoked in paper raft technique?

  1. An organ
  2. Protoplast
  3. Single cell
  4. Callus
Question 4 Multiple Choice (Single Answer)

Which type of tissue culture uses unorganised and undifferentiated mass of tissue?

  1. Organ culture
  2. Callus culture
  3. Protoplast culture
  4. Micropropagation
Question 5 Multiple Choice (Single Answer)

Homokaryons are produced in

  1. induced fusion
  2. nucellus culture
  3. spontaneous fusion
  4. cell suspension technique
Question 6 Multiple Choice (Single Answer)

Which tissue culture is used in horticulture to produce haploid plants?

  1. Apical meristem tissue culture
  2. Ovary tissue culture
  3. Nucellar tissue culture
  4. Pollen culture
Question 7 Multiple Choice (Single Answer)

Why are clones obtained from nucellar culture better than cutting?

  1. Nucellar tissue helps in formation of tap root system.
  2. Nucellar seedlings are vigorous.
  3. Nucellar seedlings are free from diseases.
  4. All of the above
Question 8 Multiple Choice (Single Answer)

Which criterion is used for virtual selection of hybrids?

  1. Height of plant
  2. Products secreted
  3. Pigmentation
  4. Size of nucleus
Question 9 Multiple Choice (Single Answer)

Cybrids are formed due to

  1. fusion of nuclei
  2. fusion of cytoplasms
  3. fusion of plastids
  4. fusion of mitochondria
Question 10 Multiple Choice (Single Answer)

Which plant tissue culture technique is used to improve quality of fruits?

  1. Embryo culture
  2. Ovary culture
  3. Pollen culture
  4. Apical meristem culture
Question 11 Multiple Choice (Single Answer)

What is the removal of stamens from flower during hybridisation called?

  1. Castration
  2. Self fertilisation
  3. Emasculation
  4. Sterilisation
Question 12 Multiple Choice (Single Answer)

Which of the following is/are suitable osmotic stabilising agent(s) used for obtaining viable and stable protoplast?

  1. Sorbitol
  2. Mannitol
  3. Both (1) and (2)
  4. Pectinase enzyme
Question 13 Multiple Choice (Single Answer)

What is the optimum condition required for protoplast regeneration?

  1. 25+/-2 degree centigrade dark
  2. 25+/-2 degree centigrade bright light
  3. 25+/-2 degree centigrade dim light
  4. 35+/-2 degree centigrade dim light
Question 14 Multiple Choice (Single Answer)

A hybridisation technique which completely eliminates sexual process is

  1. callus culture
  2. organ culture
  3. somatic hybridisation
  4. single cell culture
Question 15 Multiple Choice (Single Answer)

Which of the following agents is/are used as fusogen(s) in induced fusion?

  1. PEG (poly ethylene glycol)
  2. NaNO3
  3. PVA (poly vinyl alcohol)
  4. All of the above
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