Genes express their character by forming

During protein synthesis in an organism,at one point the process comes to a halt. Select the group of the three codons from the following,from which any one of the three could bring about this halt.

Which code is present in the $DNA$ molecule to produce the necessary chemicals as per the parental instructions?

The production of human proteins in bacteria through genetic engineering is possible because:

The genetic code necessary for building up its own amino acids during the multiplication of a virus is carried by:

What is indicated by $AUG$?