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Write any two ways how genetically modif...

Write any two ways how genetically modified plants are found to be useful.

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**Step-by-Step Solution:** 1. **Introduction to Genetic Modification**: Genetic modification involves altering the DNA of organisms to exhibit desired traits. This is achieved through genetic engineering techniques where specific genes are isolated and introduced into host organisms. 2. **Pest Resistance**: One significant benefit of genetically modified plants is the development of pest-resistant varieties. For example, BT cotton has been engineered to include a gene from the bacterium *Bacillus thuringiensis*, which produces a protein toxic to certain insect pests. This modification allows the cotton plants to resist pest damage without the need for chemical pesticides. 3. **Abiotic Stress Resistance**: Genetically modified plants can also be engineered to withstand abiotic stresses such as drought, high temperatures, and unfavorable environmental conditions. This trait is crucial for maintaining crop yields in challenging climates. ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SET 1 [COMPTT]
  1. State one reason for adding blue-green algae to the agricultural soil.

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  2. Name the material used as matrix in gel-electrophoresis and mention it...

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  3. Write the level of biodiversity represented by a mangrove. Give anothe...

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  4. Name the two gases contributing maximum to the green house effect.

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  5. What is amniocentesis? How is it misused ?

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  6. Rearrange the following in increasing order of evolution? Gnetales, ...

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  7. Differentiate between active immunity and passive immunity.

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  8. Differentiate between outbreeding and outcrossing.

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  9. Name two groups of organisms which constitute 'flocs'. Write their inf...

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  10. Why is making cells competent essential for biotechnology experiments?...

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  11. Write any two ways how genetically modified plants are found to be use...

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  12. Provide two reasons that make the counting of prokaryotic species diff...

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  13. How is apomixis different from parthenocarpy ?

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  14. Describe any two modes by which apomictic seeds and be produced.

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  15. What are the transcriptional products of RNA polymerase III?

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  16. Differentiate between 'Capping' and 'Taling'.

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  17. Expand hrRNA.

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  18. Giving three reasons, write how Hardy-Weinberg equilibrium can be affe...

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  19. Do you support 'Dope' test being conducted on sportspersons perticipat...

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  20. Draw and explain expanding age pyramids of human population. Why is it...

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