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Molecular Basis...

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  • Question 1
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    E. coli bacteria grew in $$^{15}NH_4Cl$$ medium for several generation are allowed to grow in $$^{14}NH_4Cl$$ medium. After 2 generations, the bacteria are isolated from the medium and DNA of bacteria centrifuged in CsCl. The result of the density gradient consists of DNA that is

  • Question 2
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    The codons UUU and UUC codes for phenylalanine only. This feature of genetic code is called

  • Question 3
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    A section of DNA appears as shown above.
    When replication occurs, if this molecule is being unzipped in from left to right, which strand will be the leading strand, and why?

  • Question 4
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    In nucleoside, the nitrogen base is attached to the first carbon of sugar by ............ bond.

  • Question 5
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    Wobble hypothesis deals with

  • Question 6
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    Which of the following loop in the given diagram has ribosome recognition site?

  • Question 7
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    tRNA was discovered by ____ and _____.

  • Question 8
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    Which option is correct for the amino acid and the total number of their genetic codons?

  • Question 9
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    Which of the following amino acids is specified by 4 codons?

  • Question 10
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    First triplet pair deciphered by Khorana was _________________.

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