section7

section7 - MIT Department of Biology 7.014 Introductory...

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MIT Department of Biology 7.014 Introductory Biology, Spring 2005 Recitation Section 7 February 28-March 1, 2005 Molecular Biology—DNA as Genetic Material and DNA Replication A. DNA as Genetic Material Before people used words such as “genetic material,” the concept behind this term was well established. In fact, an entire industry based in large part on this concept played an enormous role in the development of our civilization. 1. What is this industry? How was the concept of “genetic material” central, if not articulated, part of this industry? After the work of Mendel was re-discovered, trying to understand what that “genetic material” was became a key part of scientific endeavor. While scientists did not discover what that substance was for some time, they fairly quickly formulated the three requirements that genetic material must satisfy. 2. What are those requirements? Why do they make sense? 3. Given what you now know about DNA structure, how does DNA satisfy these requirements?
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section7 - MIT Department of Biology 7.014 Introductory...

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