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We have studied the plant production by ...

We have studied the plant production by technique of tissue culture in the last class. Stem cells are used for that purpose. Whether such stem cells are present in animals?

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Yes. Stem cells are found in animals also. A foetus is connected to mother's womb through placenta which contains stem cells. Blastocyst also contains stem cells. In adult, these stem cells are found in red bone marrow, adipose tissue and blood.
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A device used to observe minute living organisms, blood cells, cells of plants and animals

Diseases in humans can be prevented by administration of vaccines. Vaccines contain inactivated, killed / weakened pathogens that can be used as antigens to provide either permanent or temporary immunity against a specific pathogen or disease. Conventional methods of vaccine preparation include the use of completely or partially killed pathogens. These vaccines however posed a risk of causing disease in case of some persons. Biotechnological techniques provide alternative antigenic genes isolated in the laboratory that can be used to make pure forms of proteins that can be used as antigens to activate the immune system. Recent developments in this field include production of edible vaccines like transgenic potatoes. Consumption of raw potatoes is speculated to develop immunity against the pathogen. These edible vaccines are produced by inserting genes isolated from specific pathogens to produce the antigen in the plants. Based on the given paragraph answer the following questions. i) How can people immunized with vaccines containing semi-killed pathogens have a risk of contracting a disease?

TARGET PUBLICATION-CELL BIOLOGY AND BIOTECHNOLOGY -Apply your knowledge
  1. Which technique in relation to tissues have you studied in earlier cla...

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  2. Which are the various processes in tissue culture?

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  3. We have studied the plant production by technique of tissue culture in...

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  4. Assign names in the figure given on textbook page no. 88. Explain the ...

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  5. Just like the grafting in plants, is organ transplantation possible in...

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  6. Discuss about stem cells and organ transplantation in · the class with...

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  7. Visit the websites - http://www.who.int/transplantation/organ/en / & w...

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  8. What is biotechnology?

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  9. In which various fields, biotechnology has been useful?

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  10. What is the impact of biotechnology on agricultural and other related ...

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  11. Give five examples each of the fruiting and flowering plants developed...

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  12. Collect information about various hybrid varieties of animals. What ar...

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  13. What will happen if transgenic potatoes are cooked for consumption?

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  14. Collect more information about the Human Genome Project, one of the im...

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  15. Which new species of rice have been developed in India?

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  16. Collect the information and make the chart about the work of various s...

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  17. Why people from all over the world are again preferring the local wild...

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  18. Bring a packet of 'Balguti' from ayurveda shop. Learn the information ...

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  19. Which fruit processing industries you observe in your surrounding? Wha...

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  20. Visit the organic manuring projects nearby your place and collect more...

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