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Dr. Khorana and his colleagues synthesiz...

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 `:`

A

UGG and GUU

B

UUG and GGU

C

UGU and GUG

D

GUG and UGU

Text Solution

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The correct Answer is:
C
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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 prptide with alternating sequences of cystein and valine. This prove that codon for cystein & valine is

ARIHANT NEET-GENE, ITS EXPRESSION AND REGULATION-Chapter Exercise (A) Taking it together (Assorted questions of the Chapter for Advanced Level Practice
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  2. The first undoubted evidence about DNA being the genetic material came...

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  3. Dr. Khorana and his colleagues synthesized an RNA molecule with repeat...

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  4. The promoter site and the terminator site for transcription are locate...

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  5. The wild type E. coli cells are growing in normal medium with glucose....

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  6. In an E coli cell according to the operon theory, an operator gene com...

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  7. The lac operon requires a ' helper' protein which, by binding to the p...

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  8. Which one of the following pairs is correctly matched?

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  9. During protein synthesis , the correct amino acid is brought to the ri...

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  10. Addition of lactose in a culture of E. coli induces enzymes ----------...

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  11. Practice using the dictionary of the genetic code determine the amino ...

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  12. During protein synthesis , the correct amino acid is brought to the ri...

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  13. Which among the following codon do not codes for valine (val)?

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  14. The process of translation requires

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  15. Which of the following is true about the terminator

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  16. Which of the following is true about the promoter gene?

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  17. In protein synthesis, a polypeptide of five amino acids is synthesized...

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  18. In mRNA , AUG is the initiating codons and UAA, UAG and UGA are termin...

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  19. In tryptophan synthesis pathway , tryptophan acts as a compressor . Wh...

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  20. While analysing the DNA of an organism a total number of 5386 nucleoti...

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