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Explain the concept of tissue culture. - Science and Technology

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प्रश्न

Explain the concept of tissue culture.

संक्षेप में 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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अध्याय 17: Introduction to Biotechnology - Exercise [पृष्ठ २०८]

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

संबंधित प्रश्न

What is 'tissue culture'?


Name the technology that has helped scientists to propagate on a large scale the desired crops in a short duration. List the steps carried out to propagate the crops by the said technique.


How are somatic hybrids obtained?


Name any five hybrid varieties of crop plants which have been developed in India.


Mention two advantages of micro propagation.


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


Give three anatomical differences between a monocot root and a dicot root


Describe the tissue culture technique in plants.


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

 

 

Removal of ring wood of tissue outside the vascular cambium from the tree trunk kills it because ______.


Callus is ______. 


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.

  1. protoplasts of different cells of the same plant are fused
  2. protoplasts from cells of different species can be fused
  3. treatment of cells with cellulase and pectinase is mandatory
  4. the hybrid protoplast contains characters of only one parental protoplast

What is protoplast fusion?


“Give me a living cell of any plant and I will give you a thousand plants of the same type” Is this only a slogan or is it scientifically possible? Write your comments and justify them.


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


Discuss how the property of plant cell totipotency has been utilised for plant propagation and improvement


What does the plant tissue culture medium consists of?


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