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Zoology - Molecular Genetics Three Marks Questions

12th Standard

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Biology

Time : 00:45:00 Hrs
Total Marks : 30
    10 x 3 = 30
  1. Distinguish between structural gene, regulatory gene and operator gene

  2. A low level of expression of lac operon occurs at all the windows for treatment of various genetic disorders. Justify the statement

  3. Why the human genome project is called a mega project?

  4. From their examination of the structure of DNA, What did Watson and Crick infer about the probable mechanism of DNA replication, coding capability and mutation?

  5. Why tRNA is called an adapter molecule?

  6. What are the three structural differences between RNA and DNA?

  7. Name the anticodon required to recognize the following codons: AAU, CGA, UAU, and GCA.

  8. What is reverse transcription?

  9. Distinguish monocistronic and polycistronic gene.

  10. Chemically DNA is more stable than RNA- Justify.

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