aim: what is the structure and function of nucleic...
TRANSCRIPT
AIM: WHAT IS THE STRUCTURE AND FUNCTION OF NUCLEIC
ACIDS?December 16, 2013
Catalyst: Chemistry Pepper
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AGENDA• Nucleic Acids
• Genes
• Structure
• RNA vs DNA
• Basic Structure of DNA
• Algal Lab Measurement
NUCLEIC ACIDS• Gene - unit of inheritance
• Nucleic Acids (DNA and RNA) are polymers made up of monomers called nucleotides
DNA VS. RNA• Deoxyribonucleic Acid (DNA)
• Deoxyribose backbone
• A, T, C, G
• Ribonucleic Acid (RNA)
• Ribose backbone
• A, U, C, G
NUCLEOTIDES• Monomer of
polynucleotide
• Nitrogenous Base
• Five - Carbon Sugar
• Phosphate Group
NUCLEOTIDES
• Purines - one 6 membered carbon ring
• Cytosine, Thymine, and Uracil
• Pyrimidines - 6 membered carbon ring and a 5 membered carbon ring
• Adenine and Guanine
NUCLEOTIDE POLYMER
• Nucleotides are linked together by phosphodiester bonds
• Phospho - Phosphate linkage
• Diester - Two ester groups bound together
DNA STRUCTURE• Two antiparallel strands
• 5’ - 3’ direction
• Carbons are labeled as 5’ and 3’
• Double Helix
• Base Pairing Rules
• A - T
• G - C
RNA STRUCTURE
• Single Stranded
• Base Pairing Rules
• A - U
• G - C
GENETICS AS A MARKER OF EVOLUTION