The amino acids code for the protein. If one amino acid is changed then the whole protein is changed.
The number of ATP molecule depends on type of molecule broken down carbohydrate most commonly broken down to make ATP
Answer:
the paired bases( nitrogenous bases )
The structure of DNA is called a double helix because DNA is made up of two strands of nucleotides wound together in a spiral.
DNA has two strands that run opposite of each other and twist together much like a twisted ladder. Each backbone of the ladder is made up of alternating groups of sugar and phosphate groups.