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Explain the concept of tissue culture. - Science and Technology

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प्रश्न

Explain the concept of tissue culture.

थोडक्यात उत्तर
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उत्तर

  1. ‘Ex vivo growth of cells or tissues in an aseptic and nutrient-rich medium’ is called tissue culture.
  2. Nowadays, a complete organism can be developed from a single cell or from tissue with help of the tissue culture technique.
  3. A liquid, solid or gel-like medium prepared from agar, which supplies nutrients and energy necessary for tissue culture is used in this technique.
  4. 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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पाठ 17: Introduction to Biotechnology - Exercise [पृष्ठ २०८]

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बालभारती Science and Technology [English] 9 Standard Maharashtra State Board
पाठ 17 Introduction to Biotechnology
Exercise | Q 9. ii | पृष्ठ २०८

संबंधित प्रश्‍न

Give two examples where micropropagation is commercially adopted


Mention two advantages of the micropropagation technique.


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


In the following questions/statements has four suggested answers. Rewrite the correct answer

Opening and closing of stomata is due to:

(A) Ca2+

(B) Na+

(C) K+

(D) Cl–


Describe the structure of phloem.


Describe different steps involved in tissue culture technique


Describe the tissue culture technique in plants.


How can healthy potato plants be obtained from a desired potato variety which is viral infected? Explain.

 

 

Attempt any TWO of the following:

Enlist the applications of tissue culture.


Name the technique and the property of plant cells that can help to grow somaclones of certain desired varieties of apple. Explain how somaclones of apple can be obtained in the lab so as to get the desired variety on a large scale.


In plant tissue culture auxin is used for ____________.


From the following statements which is NOT correct?


The large number of genetically identical offsprings produced by micropropogation are called ____________.


Protoplast is ______.


What is protoplast fusion?


Why is it easier to culture meristems compared to permanent tissues?


How is a somatic hybrid different from a hybrid?


What are the physical barriers of a cell in the protoplast fusion experiment? How are the barriers overcome?


What are the advantages of tissue culture methods over conventional method of plant breeding in crop improvement programmes?


Give importance of coconut milk in tissue culture.


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