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[A]: The preparation of recombinant DNA ...

[A]: The preparation of recombinant DNA requires restriction enzymes.
[R]: Because these are not used to cleave plasmid DNA

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
C
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TRUEMAN BIOLOGY-Genetics-ASSERTION AND REASON
  1. [A]: Genetic engineering is the use of technology to alter the genome ...

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  2. [A]: Polymerase chain reaction (PCR) fol- lowed by DNA probe is used d...

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  3. [A]: The preparation of recombinant DNA requires restriction enzymes. ...

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  4. [A]: Plasmids are small accessory rings of DNA found in some bacteria ...

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  5. [A]: Proteins are polymers of amino acids. [R]: Nucleic acids are p...

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  6. [A): Prokaryotic cells do not contain repres- sor protein [R]: The...

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  7. [A]: If a population is of dominant genotype AA, then the frequency of...

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  8. [A]: In paracentric inversions the centromere is outside the inverted ...

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  9. [A]: Polyploidy increases the tolerance of plants towards extreme clim...

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  10. [A]: Haemophillia is a genetically linked disease. [R]: The carrier...

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  11. [A]: Cytoplasmic male sterility is observed in maize. [R]: The cyto...

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  12. Assertion: DNA synthesis occurs in G(1) and G(2) periods of cell cycle...

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  13. [A]: Sickle-cell anaemia is a genetically de- termined disorder affect...

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  14. [A]: The deleted region of long arm of chro- mosome 7 contains the ela...

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  15. [A]: Cenromere is the primary constriction on the metaphase chromosome...

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  16. [A]: Dolly, a sheep is an example of cloning. [R]: Cloning in anoth...

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  17. Assertion (A) : Replication and transcription occur in the nucleus but...

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  18. [A]: Cycads were prevalent during Jurassic period. [R]: Jurassic pe...

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  19. [A]: Evolution is descent with modification. [R]: Evolution is der...

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  20. [A]: Isolation is a mechanism which prevents interbreeding among other...

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