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Khorana & his collegeous synthesized an RNA molecule with repeating sequence of `U G N_(2-)` bases. The RNA with "UGU GUG UGU GUG" produced at tetral peptide with alternating sequences of cystein and valine. This prove that codon for cystein & valine is

A

UGG and GUU

B

UUG and GGU

C

UGU and GUG

D

GUG and UGU

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The correct Answer is:
C
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Dr. Khorana and his colleagues synthesized an RNA molecule with repeating sequence of UGN bases (UG UG UG UG UG UG). IT produced a tetrapeptide with alternating sequence of cysteine and valine. It proves that codons for cysteine and valine are :

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PHYSICS WALLAH-MOLECULAR BASIS OF INHERITANCE -Level-2
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  2. Which of the following option depicts the difference between DNA and R...

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  3. Khorana & his collegeous synthesized an RNA molecule with repeating se...

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  4. A DNA molecule in which both strands have radioactive thymidine is all...

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  5. If the base sequence of one starand of DNA is CAT, TAG, CAT, CAT, GAC....

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  6. Incorrect statement is/are A. If two charged tRNAs are brought clos...

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  7. Strongest evidence that DNA is genetic material comes from:

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  8. The function of a non- sense codon is to

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  9. In a piece of DNA, adenine is 22.4%, cytosine is 31.3% guanine is 13.4...

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  10. According to Chargaff's rule, which of the following statements about ...

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  11. A sequence of three consecutive bases in a tRNA molecule specifically ...

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  12. The function of nucleases is to:

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  13. A completely radioactive double standed DNA molecule undergoes two rou...

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  14. Which of the following m-RNA is translated completely :- (A) 5' AUG ...

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  15. If in m-RNA, base sequence is 5' - AUG CUA UAC CUC CUU UAU CUG UGA-3'....

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  16. DNA replication is semiconservative as

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  17. How are RFLPs detected?

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  18. Sequenciong the whole set of genome that contained all the coding and ...

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  19. The salient feature of DNA are - (i) It is made of two polynucleotid...

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  20. If the sequence of bases in one strand of DNA is known then the sequen...

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