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Dr. Khurana and his colleagues synthesized an RNA molecule with repeating sequence of UGn bases (UG UGUGUGUG UG). It produced a tetrapeptide with alternating sequence of cysteine and valine.

It proves that codons for cysteine and valine is

1)

UGU and GUU

2)

UGU and GUG

3)

UUG and GGU

4)

GUG and UGU


Question ID - 100347 | Toppr Answer

Dr. Khurana and his colleagues synthesized an RNA molecule with repeating sequence of UGn bases (UG UGUGUGUG UG). It produced a tetrapeptide with alternating sequence of cysteine and valine.

It proves that codons for cysteine and valine is

1)

UGU and GUU

2)

UGU and GUG

3)

UUG and GGU

4)

GUG and UGU

1 Answer - 5876 Votes

3537

Answer Key : (2) -

In the given base sequence with repeating sequence of UG nucleotide bases, a tetrapeptide is produced with alternating sequence of cysteine and valine. So, it proves that UGU codes for cysteine and GUG codes for valine amino acid and a tetrapeptide with cysteine and valine as alternating amino acids is produced.



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