Escherichia coli is an important material for genetic experiments because

Which amino acids are present in histones?

Histones are rich in

A polypeptide is produced as dictated by $mRNA$, the number of bases on the $mRNA$ that code for the polypeptide portion containing $N$-terminal amino acid and next $13$ amino acid is

If a certain group of cells utilise the amino acid glycine exclusively for protein synthesis, and if a growing culture of these cells is fed radioactive glycine, radioactivity will be found first in the