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प्रश्न
Explain the concept of tissue culture.
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उत्तर
- ‘Ex vivo growth of cells or tissues in an aseptic and nutrient-rich medium’ is called tissue culture.
- Nowadays, a complete organism can be developed from a single cell or from tissue with help of the tissue culture technique.
- A liquid, solid or gel-like medium prepared from agar, which supplies nutrients and energy necessary for tissue culture is used in this technique.
- Its uses are in the production of cash crops, improvement in varieties of cash crops, increase in abilities of plants to withstand environmental stresses, vaccine production, early diagnosis of congenital diseases, organ transplant, cancer research, production of artificial skin, cartilage, etc. in laboratories.
Various processes in tissue-culture
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संबंधित प्रश्न
Why are the plants raised through micropropagation are termed as somaclones?
Differentiate between somaclones and somatic hybrids. Give one example of each.
With advancements in genetics, molecular biology and tissue culture, new traits have been incorporated into crop plants. Explain the main steps in breeding a new genetic variety of a crop
Mention two advantages of micro propagation.
Mention one significant difference between Symplastic movement and apoplastic movement
In the following questions/statements has four suggested answers. Rewrite the correct answer
Roots and shoots lengthen through the activity of:
(A) Apical meristem
(B) Vascular Cambium
(C) Lateral meristem
(D) Cork Cambium
Why are xylem and phloem classified as complex tissues?
Describe the tissue culture technique in plants.
Answer the following question.
Explain the relevance of "Totipotency" and "Somaclones" in raising healthy banana plants from virus-infected banana plants.
From the following statements which is NOT correct?
Which of the following helps bamboo and grasses to elongate?
Removal of ring wood of tissue outside the vascular cambium from the tree trunk kills it because ______.
Which of the following method is NOT used for crop improvement?
In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because ______.
Given below are a few statements regarding somatic hybridization. Choose the correct statements.
- protoplasts of different cells of the same plant are fused
- protoplasts from cells of different species can be fused
- treatment of cells with cellulase and pectinase is mandatory
- the hybrid protoplast contains characters of only one parental protoplast
What is protoplast fusion?
How is a somatic hybrid different from a hybrid?
Is there any relationship between dedifferentiation and the higher degree of success achieved in plant tissue culture experiments?
What are the advantages of tissue culture methods over conventional method of plant breeding in crop improvement programmes?
