Nirenberg synthesized an m-RNA containing 34 | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Marshall Nirenberg and his colleagues used synthetic $m-RNA$ to decipher the genetic code. They synthesized a poly-adenine $m-RNA$ (a sequence of

Vedclass · Accepted Answer

$A-A-A$ triplet

Vedclass · Answer

(C) Marshall Nirenberg and his colleagues used synthetic $m-RNA$ to decipher the genetic code. They synthesized a poly-adenine $m-RNA$ (a sequence of $A-A-A-A...$). Since the resulting polypeptide chain consisted of $11$ lysine amino acids,and the $m-RNA$ had $34$ adenine bases,the ratio of bases to amino acids is $34/11 \approx 3$. This indicates that a sequence of $3$ adenine bases $(A-A-A)$ codes for one lysine molecule. Therefore,the genetic code is a triplet.

Nirenberg synthesized an $m-RNA$ containing $34$ poly-adenine and found a $11$ poly-lysine polypeptide structure. This proves that the genetic code for lysine is ......

Similar Questions

Which of the following is a stop codon?

Which of the following pairs of codons is correctly matched with their function or the specific amino acid they signal?

Which $RNA$ carries the genetic code?

Statement $P$: An $m-RNA$ consists of $75$ nucleotides.
Statement $Q$: There are $61$ types of codons in the cytoplasm.

The 'one gene one enzyme' concept means:

Vedclass Test Series

Exam Paper Generator

Online Exam Module