If the anticodon on a $tRNA$ is $CCG$,which amino acid will this $tRNA$ carry?

The genetic code is called a degenerate code because

If the genetic code is a triplet,how many codons will be formed?

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:

Genetic codes are

How many amino acids will be coded by the $mRNA$ sequence $5'-CCCUCAUAGUCAUAC-3'$ if an adenosine residue is inserted after the $12^{th}$ nucleotide?