Download presentation
Presentation is loading. Please wait.
Published byJustin Gallagher Modified over 9 years ago
1
DNA Rep & Protein Syn
2
1928 – Griffith Transformation Experiment
3
1941-Avery, McCarty, MacLeod
4
1952-Hershey & Chase
5
1952-Rosalind Franklin
6
1953-Watson & Crick
7
Chromosomes, DNA, and Genes
8
DNA Structure Deoxyribonucleic Acid Double Helix Made of nucleotides Pentose Sugar (deoxyribose) Phosphate Nitrogenous Base A-T / C-G
9
Nucleotide
10
Nitrogenous Bases
11
Base Pairing
12
DNA is AntiParallel
13
DNA is still AntiParallel
14
How?
15
Possible Models for DNA Replication
16
Step 1
17
Step 2
19
DNA Replication Animation http://highered.mcgraw- hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535 ::535::/sites/dl/free/0072437316/120076/micr o04.swf::DNA%20Replication%20Fork http://highered.mcgraw- hill.com/olcweb/cgi/pluginpop.cgi?it=swf::535 ::535::/sites/dl/free/0072437316/120076/micr o04.swf::DNA%20Replication%20Fork
20
Think About It If your DNA has 6 billion base pairs and generally there is one mistake made for every 100,000bp that are copied during replication, how many errors should result each time you copied your DNA? How many errors result in reality? Why?
23
Protein Synthesis Overview
25
RNA Structure Ribonucleic Acid Single Strand of nucleotides Pentose Sugar (ribose) Phosphate Nitrogenous Base A-U / C-G
26
RNA Nucleotide
28
3 Types of RNA mRNA, tRNA, rRNA
29
Protein Synthesis Step 1 – Transcription Step 2 – Translation
30
Transcription Definition RNA Polymerase DNA Terminator 5’ Cap Poly – A Tail
31
Transcription Animation http://highered.mcgraw- hill.com/sites/0072507470/student_view0/cha pter3/animation__mrna_synthesis__transcripti on___quiz_2_.html http://highered.mcgraw- hill.com/sites/0072507470/student_view0/cha pter3/animation__mrna_synthesis__transcripti on___quiz_2_.html
32
mRNA Processing http://highered.mcgraw- hill.com/sites/9834092339/student_view0/chapter 16/animation_-_exon_shuffling.html
33
Translation Definition
34
mRNA Codons thedogbitthecatforfun the dog bit the cat for fun aug uuu cgc ggg cua aga uaa
35
tRNA
36
Ribosome
37
Codons
41
Codons
42
Translation Animation http://highered.mcgraw- hill.com/sites/0072943696/student_view0/chapter3/animat ion__how_translation_works.html http://highered.mcgraw- hill.com/sites/0072943696/student_view0/chapter3/animat ion__how_translation_works.html
44
Protein Folding
45
Protein Processing http://highered.mcgraw- hill.com/sites/0072943696/student_view0/chapter2/animat ion__protein_denaturation.html http://highered.mcgraw- hill.com/sites/0072943696/student_view0/chapter2/animat ion__protein_denaturation.html
46
Gene Regulation Repressible Operon – trp Operon Inducible Operon – lac Operon
47
trp Operon
48
lac Operon
49
cAMP & lac Operon
50
lac Operon Animation http://highered.mcgraw- hill.com/sites/007337797x/student_view0/chapter13/anim ation_quiz_- _combination_of_switches__the_lac_operon.html http://highered.mcgraw- hill.com/sites/007337797x/student_view0/chapter13/anim ation_quiz_- _combination_of_switches__the_lac_operon.html
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.