Question
What do you understand by micro proagation? Write the methods involved with suitable diagrams.###(a) What are the plants raised through the micropropagation termed as somaclones?
(b) Mention two advantages of this technique.

Answer

Micropropagation : By asexual reproduction, thousand of palnts with identical characters are regenerated, this is known as clonal propagation. When clonal propagation is carried out under in vitro conditions, it is called micro propagation.
Micropropagation is a technique of plant tissue culture in which thousand of plants can be propagated froma part of the plant. Plants produced through micropropagation can also be termed as somaclones because these are genetically similar to the mother plant.
Methods of Micropropagation :
(i) Selection of suitable explant and its sterilization.
(ii) Transfer of explant on nutrient medium.
(iii) Protiferation of shoot on nutrient medium.
(iv) Transfer of shoots on rooting medium.
(v) Transfer of plantlets on soil.
Micropropagation can be achieved by three methods :
(a) By callus culture
(b) By adventitions stem
(c) By apical and axillary stems
Benefits of Micropropagation :
(i) A large number of plants can be produced in less time.
(ii) All the plants are genetically identical to their parents.
(iii) Plants one disease resistant.
Image

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

During the course of evolution why DNA was chosen over RNA as genetic material? Give reasons by first discussing the desired criteria in a molecule that can act as genetic material and in the light of biochemical differences between DNA and RNA.
  1. A true breeding pea plant, homozygous for inflated green pods is crossed with another pea plant with constricted yellow pods (ffgg). What would be the phenotype and genotype of F1 and F2 generations? Give the phenotype ratio of generation.
  2. State the generalisation proposed by Mendel on the basis of the above–Mentioned cross.
  1. Draw a simplified model of phosphorus cycling in a terrestrial ecosystem.
  2. Write the importance of such cycles in ecosystems.
Give reasons for the following:
  1. Shivering in malaria.
  2. Plasmodium is considered a digenetic parasite.
  3. Dengue fever is also known as break bone fever.
  4. Swelling of lower limbs in filariasis.
Draw and explain a logistic curve for a population of density (N) at time (t) whose intrinsic rate of natural increase is (r) and carrying capacity is (k).
Explain a monohybrid cross taking seed coat colour as a trait in Pisum sativum. Work out the cross up to F2 generation.
What are the reasons for biodiversity conservation?
In what way anaerobic sludge diagestion is important in sewage treatments?
What is menstrual cycle. Explain its various events with the help of diagram.###Describe in detail the various stages of menstrual cycle with the help of diagram.###Write a detail note on different stages of menstrual cycle and also sketch out these stages of
menstrual cycle by graphical diagram.###Define sexual reproduction. Explain the process of menstrual cycle.
Name the functions of the following:
  1. Corpus luteum.
  2. Endometrium.
  3. Acrosome.
  4. Sperm tail.
  5. Fimbriae.