BIOL 2153 : Complete Notes For Test 3
Document Summary
Experimental results: avery, macleod, and mccarty used heat-killed siii bacteria and live. Hershey and chase experiments: proteins contain large amounts of sulfur but almost no phosphorus; Dna contains large amounts of phosphorus but no sulfur: hershey and chase separately labeled either phage proteins (with. Phage dna, not protein, is responsible for infecting the bacteria. 7. 2 the dna double helix consists of two complementary and. Assembly of polynucleotide chains: individual nucleotides are assembled into chains by the enzyme. Dna polymerase: it catalyzes the formation of a phosphodiester bond between the 3 hydroxyl group of one nucleotide and the 5 phosphate of an adjacent one, each polynucleotide chain has a sugar-phosphate backbone, alternating sugar and phosphate groups. The three models: a consequence of complementary base pairing is that nucleotides on one strand of the duplex can be used to identify nucleotides on the other strand, after the dna structure was identified, three competing models of.
