Melanie recaps DNA in all its coiled and condensed forms during Episode 17. Beginning on the most microscopic level, (1:27) Melanie reviews the nucleotide monomer structure. You can create an antiparallel model with your own arms (2:45). Do you prefer a history or chemistry themed memory hack for nitrogenous bases? (3:40). DNA wraps around histones to form chromatin before condensing into chromosomes. The episode concludes with a contrast between prokaryotic and eukaryotic chromosome structure. (6:22)
The Question of the Day asks (6:19) “Which nitrogenous base is unique to RNA?”
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