Biology › Nucleic acids, genomes and protein synthesis

Nucleic acids, genomes and protein synthesis

Unit B05 · 4 lessons published so far.

• DNA and RNA: four letters and a rule about pairing
  The three parts of a nucleotide, the sugar-phosphate backbone made by condensation, complementary base pairing with two hydrogen bonds between…
• DNA replication: one old strand in every new molecule
  Semi-conservative replication, helicase unwinding the helix and breaking hydrogen bonds, DNA polymerase and the 5 prime to 3 prime constraint that…
• The genetic code and transcription
  The genetic code as triplet, degenerate, non-overlapping and near-universal, with the consequence of each property; genes, introns and exons…
• Translation: turning a message into a working protein
  The structure of the ribosome and its two tRNA binding sites, tRNA anticodons, the three stages of translation, peptide bond formation, the ATP cost…