Answer:
The DNA: is a double helix, contains the original code to make proteins, contains thymine, contains guanine, contains adenine, contains cytosine
Step-by-step explanation:
The DNA is a double helix linked to both chains by hydrogen bridge bonds; It is formed by the nitrogen bases Adenina that is paired with Thymine and Cytosine with Guanine, sugar: deoxyribose and phosphate groups. The genome of a certain organism is found in the DNA, that portion of the genome that codes for an RNA or protein is called a gene.
Those genes that code for proteins are composed of "codons" (units of 3 nucleotides), being that each of them codes for an amino acid.