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What is EcoRI ? How does EcoRI differ fo...

What is EcoRI ? How does EcoRI differ form an exonuclease ?

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**Step-by-Step Solution:** 1. **Definition of EcoRI:** - EcoRI is a type of restriction endonuclease enzyme. It is derived from the bacterium *Escherichia coli* and is commonly used in molecular biology for cutting DNA at specific sequences. 2. **Function of EcoRI:** - EcoRI recognizes a specific palindromic DNA sequence (GAATTC) and cleaves the DNA at this site. This ability to cut DNA at precise locations makes it invaluable in recombinant DNA technology, where DNA fragments need to be joined or manipulated. ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-Set I
  1. Mention the economic value of Apis indica.

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  2. Shark is eurythermal while polar bear is stenothermal. What is the adv...

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  3. What is EcoRI ? How does EcoRI differ form an exonuclease ?

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  4. (a) What are the after effects of the degradation of ozone ? (b) Ho...

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  5. A childless couple has agreed for a test tube baby programme. List onl...

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  6. Banana fruit is said to be parthenocarpic where as turkey is said to b...

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  7. Is sweet potato analogous or homologous to potato tuber ? Give reasons...

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  8. Our farmers still use DDt. How is the affecting the local bird populat...

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  9. The above diagrams shows human male reproductive system (one side only...

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  10. What do you infer from the resemblance between flying squirrel and fly...

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  11. (a) Differentiate between a template strand and coding strand of DNA. ...

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  12. Explain succession of plants in xerophytic habitat until it reaches cl...

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  13. A sugarcane has been affected by virus. How can a virus free can be de...

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  14. Why is DNA a better genetic meterial when compared to RNA ?

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  15. How does a detritivore differ from a decomposer ? Explain with an exam...

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  16. Explain the events in a normal woman during her menstrual cycle on the...

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  17. A youth in his twenties met with an accident and succumbed to the inju...

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  18. (a) Dihybrid cross between two garden pea plant one homozygous tall wi...

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  19. Unless the vector and source DNA are cut, fragments separated and join...

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  20. (a) Draw a diagram of a fertilized embryo sac of a dicot flower. Label...

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