Protein molecules are made from amino acids. Structurally, an amino acid is made up of a carboxyl group, an amino group and a unique side group. The amino group of amino acid is composed on nitrogen linked to two hydrogen atoms. Generally, the nitrogen component of all proteins is between the range of 15% to 25%. The quantity of oxygen in proteins also falls within the same range. Thus, the percentage of nitrogen in proteins is not up to 50%.
The colon is also called the large intestine. The ileum (last part of the small intestine) connects to the cecum (first part of the colon) in the lower right abdomen
Answer/Explanation: One of the key molecules in DNA replication is the enzyme DNA polymerase. DNA polymerases are responsible for synthesizing DNA: they add nucleotides one by one to the growing DNA chain, incorporating only those that are complementary to the template. (Brainllest please)