Important Terms

nucleotide

Chargaff’s rules

transforming principle

isotope

X-ray diffraction

ribose

deoxyribose

nitrogenous base

purine

pyrimidine

adenine (A)

guanine (G)

cytosine (C)

thymine (T)

uracil (U)

nucleoside

phosphate group

deoxyribonucleotide

ribonucleotide

phosphodiester linkage

polynucleotide strand

5′ end

3′ end

antiparallel

complementary DNA strands

B-DNA

A-DNA

Z-DNA

transcription

translation

replication

central dogma

reverse transcription

RNA replication

hairpin

H-DNA

DNA methylation

5-methylcytosine