Early researchers thought protein had to be the genetic material because it had such variability in the amino acids from which it was made.  DNA is composed of only four kinds of nucleotides, so how could it provide the necessary variety?  This tutorial will follow the experiments that led to the identification of DNA as the genetic material; to the elucidation of the DNA structure; to the relationship among DNA, RNA, and protein; and to the genetic code itself.

HIST Tutorial: Search for the material of heredity, DNA, and the genetic code

243rd National Meeting (2012)

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