How to calculate number of base pairs in a DNA fragment

Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids. #basePair #ancientDNA #DNAChemicalCompound #nucleicAcidClass11Biology #nucleicAcidBiochemistry #nucleicAcidMetabolismBiochemistry #nucleicAcid #whatIsNucleicAcid #nucleicAcidStructure #chromosome #chromosomeTheoryOfInheritance #chromosomeMapping #geneticsBiology #lifeProcessesClass10ScienceBiology #biomoleculesClass11Biology #biologyAtEase #nucleotide #nucleotideMetabolismBiochemistry #nucleotideStructure #whatIsNucleotide