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DNA and Molecular Genetics. Evidence. DNA structure. Transcription. Life cycle. Replication. Translation. Gene concept. Uses. Smooth. Heated Smooth. Rough. Bacteria. Evidence. Smooth. Smooth bacteria cause mouse die. Rough. Rough bacteria no change. Heated Smooth. - PowerPoint PPT Presentation
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DNA and Molecular Genetics
DNA structure
Replication
Gene concept
Transcription
Translation
Uses
Evidence
Life cycle
Evidence
Rough
Smooth Smooth
Bacteria
Rough
Heated Smooth
HeatedSmooth
Heat to 60oC
bacteria died
Smooth bacteria
cause mouse die
Rough bacteria
no change
Rough Rough
Heated Smooth
Heated Smooth
Heated Smooth
Rough
Heated smooth bacteria mixed with rough can cause mouse dead
Some things transmit to rough.
Life cycle of Bacteriophage
ANIMATION
DNA Structure
Nucleic Acids
Phosphate
Ribose
base
Adenine
Guanine
Cytosine
Thymine
Purine Pyrimidine
Nucleic Acid
ATGC combination
During cell division, DNA must reproduce itself, so that all genetic information can be transferred to daughter cells.
There are three hypothesis about DNA replication.
DNA Replication
Experiment
Semiconservative Replicatio
n
Replication mechanismA
NIM
AT
ION
AN
IMA
TIO
N
Gene concept
Gene is a sequence of DNA.
Each chromosome contains a lot of gene.
Each gene control a characteristic. So each chromosome may control a lot of gene.
How do gene control characteristic?
Gene is a sequence of DNA which contain genetic information. A messenger transports the information out the nucleus. The messenger is read by ribosome and transform to protein as building block of our body. The messenger is messenger RNA.
Transcription
How do mRNA work?
Translation
tRNA
Translation
Code of codon
Whole Process
Use of DNA technology
Funny Website
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