Tag: plant tissue culture

Quizzes (3) Questions (81)

Questions Related to plant tissue culture

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

Callus is

  1. Plant hormone

  2. Root formation in culture media

  3. Plant by-product

  4. Undifferentiated mass of tissue
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Callus is a growing mass of unorganized plant parenchyma cells. It is mainly  used in plant tissue culture. So basically in other words, callus is a undifferentiated mass of tissue. 

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

Name the process by which thousands of plants  can be raised within limited time and space?

  1. Pathernocarpy

  2. Self pollination

  3. Tissue culture

  4. Water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • The process by which thousands of plants can be raised within limited time and space is Tissue culture.
  • When new plants are grown from a small piece of plant tissue or cells removed from the growing tips of a plant in a suitable growth medium is called tissue culture.
  • Its advantages are:-
1) Thousands of plantlets can be produced in a very less time from a small amount of plant tissue.
2) Very little space is needed for developing new plants.
3) The plants produced are disease free.

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

The best plant explants to raise virus free plant is?

  1. Embryo

  2. Vessels

  3. Meristem

  4. None
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Meristem is free from viruses and they are used to grow virus-free plant cultures. The meristem has the ability of rapid rate of mitotic cell division, which is much more than the viral rate of division. Hence, the virus is unable to spread through them, hence the meristems are almost always free of viruses.

So, the correct option is 'Meristem'.

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

Plant part used for tissue culture is sterilized by ____________.

  1. Chemicals

  2. Heat

  3. UV - rays

  4. Nutrient media
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tissue culture is the growth of tissues or cells in an artificial medium separate from the organism. Plant parts can be sterilized by using several disinfecting agents i.e., use of chemicals.

Ex. :- Calcium hypo chloride, sodium hypo chloride, ethyl alcohol, silver nitrate etc.

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

In a sexual reproduction, two offspring's have the same genetic material and the same body features are called _______.

  1. Callus

  2. Twins

  3. Clones

  4. Mitosis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • In sexual reproduction, two offsprings have the same genetic material and the same body features are called identical twins.
  • They are two offspring produced by the same pregnancy.
  • Twins have the same genetic material and the same body features because they develop from a single fertilized egg, they have the same genome.
  • So, the correct answer is 'Twins'.
Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

Which is used in tissue culture

  1. Explant

  2. Somaclones

  3. Hybridization

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In plant tissue culture, an explant is the initial plant tissue piece that is introduced into the culture medium. This explant will then proliferate, differentiate, and regenerate into whole plants through various tissue culture techniques like organogenesis or somatic embryogenesis.

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

Tissue culture has been extensively used in research methods in all of the following fields of biology except in

  1. Bacteriology

  2. Embryology

  3. Virology

  4. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tissue culture is a collection of techniques used to grow cells, tissues or organs under sterile conditions on a nutrient culture medium of known composition ( in vitro). The emergence of this technique became a turning point when polio virus, could be cultivated in vitro, a discovery of Enders, Weller, and Robbins (1949). This led to the feasibility of quantitative metabolic studies in animal viruses. Tissue culture is, therefore, today a vital part of life science research ( across plants and animals ) and in every area of research that includes bacteriology, embryology and virology.

Multiple choice botany tissue culture common modes of vegetative propagation plant breeding for food production plant tissue culture

Which increase shoot growth in callus culture?

  1. Cytokinin

  2. Auxin

  3. Gibberellin

  4. ABA
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The callus is an unspecialized, unorganized, growing and dividing the mass of cells.
  • It produced when explants are cultured on the appropriate solid medium, with both auxin and cytokinin in correct conditions.
  • In Callus culture, Auxins increase root growth and cytokinins increase shoot growth.
  • Hence Cytokinin increase shoot growth in callus culture.
  • So, the correct answer is 'Cytokinin'.