Here are the matched definitions with the correct terms:
- A section of DNA that codes for a protein - gene
- A-T C-G - Chargaff's rule
- A double-helix - deoxyribonucleic acid
- A change in the normal sequence of purines or pyrimidines that may have no effect on an individual, could increase one’s survivability, or could cause harm - mutation
- When the original strand of DNA is used to create a new strand of DNA - semiconservative replication
- A sequence of three bases that form a unit of genetic code in mRNA - codon
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