CSU BMS 300 - DNA Replication to RNA Structure (6 pages)

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DNA Replication to RNA Structure



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DNA Replication to RNA Structure

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Includes the DNA structure and the bases of DNA replication.


Lecture number:
8
Pages:
6
Type:
Lecture Note
School:
Colorado State University- Fort Collins
Course:
Bms 300 - Principles of Human Physiology
Edition:
1
Documents in this Packet

Unformatted text preview:

BMS 300 J Walrond Lecture 8 Outline of Last Lecture I Filamentous actin in the cortical cytoskeleton myosin motors 1 2 movement in F actin vesicle access to the membranes 1 local delivery II DNA structure replication and the central dogma DNA as molecules of life 1 stores information about RNA structures 2 RNA structure stores information about protein structure III DNA components 5carbon sugar dextrose bases 1 purines adenine quinine 2 pyrimidines thymine These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute cytosine IV Polymerization of sugars phosphodiester bonds V Antiparallel structure and hydrogen bonds role of bases VI Replication Outline of Current Lecture I DNA structure phosphodiester bonds antiparallel organization hydrogen bonds II DNA replication semiconservative replication 1 each strand is a template for a new strand role of helicase 1 unwind helix 2 break hydrogen bonds leading strand DNA polymerase 1 polymerase reads 3 to 5 2 generates 5 to 3 III The lagging strand read 3 to 5 IV Components of RNA ribose bases 1 purines adenine guanine 2 pyrimidines uracil cytosine thymine is 5 methyl uracil V RNA polymerase reads DNA 3 to 5 to make RNA 5 to 3 transcription Current Lecture DNA Structure DNA is a double stranded helix 2 complimentary strands It depends on the hydrogen bonding between purines and pyrimidines Purines adenine guanine Pyrimidines cytosine thymine Antiparallel organization of the DNA structure opposite when one strand is 3 to 5 and the complimentary strand is 5 to 3 both strands are combined with a phosphodiester bond both strands are linked together by hydrogen bonds DNA replication semiconservative fashion each old strand serves as a template for a new strand DNA polymerase polymerizes phosphodiester bonds between adjacent deoxyribose links 5 to 3 selects complementary base RNA polymerase matches base pairs then creates a phosphodiester



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