Khorana and his colleagues synthesized an $RNA$ molecule with a repeating sequence of $U$ and $G$ nucleotides. The $RNA$ sequence "$UGU\ GUG\ UGU\ GUG$" produced a tetrapeptide with alternating chains of cysteine and valine. The codons for cysteine and valine are, respectively:

$(i)$ The codon is read in mRNA in a contiguous fashion. There are no punctuations.
(ii) Some amino acids are coded by more than one codon.
(iii) $UUU$ would code for phenylalanine.
(iv) $GAA$ is a stop terminator codon.
Comparing the above statements (i-iv),select the correct option marked with $T$ (True) and $F$ (False) with respect to the salient features of the genetic code.

Who proposed the 'one gene one enzyme' hypothesis?

Which of the following is the initiation codon?

Which of the following statements is true regarding protein synthesis?

Which codon signals the initiation of polypeptide chain synthesis?