The chemical method developed by which of the following scientists was instrumental in synthesizing $\text{RNA}$ molecules with defined combinations of nitrogen bases?

For the genetic code,choose the correct option for the given statements. Where $T$ stands for True and $F$ stands for False.
$(1)$ Phenylalanine $(Phe)$ amino acid is coded by more than three codons.
$(2)$ The codon is read in $t-RNA$ in a contiguous fashion.
$(3)$ $UUC$ would code for phenylalanine.
$(4)$ $AUG$ codes for Methionine.

The degeneracy of the genetic code is due to the:

What is not true for genetic code?

There are $64$ codons in the genetic code because....

Production of human protein in bacteria by genetic engineering is possible because