Lecture12bio

Lecture12bio - BIOLOGY 1001 Wednesday, February 27, 2008...

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Wednesday, February 27, 2008 Lecture 12 Replication Enzymes DNA Helicase unwinds the two strands breaks the hydrogen bonds holding them together. DNA Polymerase attaches complementary nucleotides. DNA Ligase fills in gaps. Replication Mechanism Strands can only be assembled in the P to S direction. DNA ligase fills in gaps on discontinued strand. Clicker Question: Semi-conservative Replication refers to the fact that _______. Answer: Each Parental DNA strand is joined with a new strain containing complementary bases. CHAPTER 10 Gene Expression and Regulation How does DNA determine physical characteristics? Genes determine protein structure. Protein structure determines the way the processes of life are carried out. How are genes and proteins related? Gene = segment of DNA at a specific place on a chromosome. DNA codes for
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Lecture12bio - BIOLOGY 1001 Wednesday, February 27, 2008...

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