Question

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?
A.Genetic code is not ambiguous
B.Genetic code is redundant
C.Genetic code is nearly universal
D.Genetic code is specific

Answer 1

The recombinant DNA is a form of DNA constructed in the laboratory.
It is mainly generated by transferring the selected pieces of DNA from one organism to another.
Recombinant DNA technology is the technology of the joining together of the DNA molecules from two different species.

Complete answer:
In the recombinant DNA technology the bacteria is able to produce human insulin because the genetic code is nearly universal since it all contains the same nitrogen bases, that is the A, G, C, and T.
Therefore, the correct answer is option C.

Additional information:
The genetic code is universal.
All the known living organisms use almost the same genetic code.
This shows that all the organisms share a common evolutionary history.
The genetic code is unambiguous.
Each codon codes for just one amino acid.
The genetic code is the degenerate code, which means that there is redundancy so that most of the amino acids are encoded by more than one triplet combination.
Although each codon is specific only for the one amino acid, the genetic code is described as degenerate, or redundant, because a single amino acid may be coded for by more than one codon.
The genetic code is the set of rules by which the information encoded in genetic material that in DNA or RNA sequences are translated into the proteins by the living cells.

Note: The recombinant DNA is a technology developed by scientists that made it possible to insert a human gene into the genetic material of the common bacterium.
This “recombinant” micro-organism could now produce the protein which is encoded by the human gene.