BIOMOLECULES AND ENZYMES

Detailed explanation-1: -It had long been known that only 20 amino acids occur in naturally derived proteins. It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C).

Detailed explanation-2: -Your body needs 20 different kinds of amino acids to function correctly. These 20 amino acids combine in different ways to make proteins in your body. Your body makes hundreds of amino acids, but it can’t make nine of the amino acids you need. These are called essential amino acids.

Detailed explanation-3: -To make a new protein, the genetic instructions are first copied from the DNA sequence of a gene to a messenger RNA molecule. The ribosome then “reads” the sequence on the messenger RNA, matching each three-letter “codon” of genetic code with a specific protein building block, one of 20 amino acids.

Detailed explanation-4: -In the human body, there are 20 amino acids that function as building blocks of proteins. Nine of these amino acids are considered essential-they must be consumed in the diet-while five are considered nonessential in that they can be made by the human body.

Detailed explanation-5: -There are a total of twenty-one amino acids, all of which are responsible for different roles throughout the body. Each amino acid is a large block of proteins, all different shapes, and sizes. In fact, some amino acid strands form together to create larger shaped proteins.