Initiation of polypeptide chain in eukaryotic protein synthesis is induced by

At which end does the amino acid attach to $t-RNA$?

How many molecules of $ATP$ and $GTP$ are required to incorporate $25$ amino acids into a peptide chain?

In a polypeptide chain consisting of $125$ amino acids,if the $25^{th}$ amino acid codon mutates to $UAA$,what will happen?

Which of the following characteristics is not applicable to $tRNA$?

In a $t-RNA$ molecule,the sequence of three consecutive bases that specifically binds to a complementary codon sequence on $m-RNA$ is known as: