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DNA and
Molecular
Genetics
Evidence
DNA structure
Transcription
Life cycle
Replication
Translation
Gene concept
Uses
Evidence
Bacteria
Smooth
Smooth bacteria
Smooth
cause mouse die
Rough bacteria
Rough
Heated
Smooth
Rough
Heated
Smooth
no change
Heat to 60oC
bacteria died
Heated
Smooth
Heated
Rough
Smooth
Heated
Smooth
Rough
Heated smooth bacteria
mixed with rough can
cause mouse dead
Rough
Some things transmit to rough.
Life cycle of Bacteriophage
ANIMATION
DNA Structure
Nucleic Acids
Phosphate
base
Ribose
Adenine
Cytosine
Purine
Pyrimidine
Guanine
Thymine
Nucleic Acid
ATGC combination
DNA Replication
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.
Experiment
Replication mechanism
ANIMATION
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.
Transcription
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.
ANIMATION
How do mRNA work?
Translation
tRNA
Translation
Translation
ANIMATION
Code of codon
Whole Process
Use of DNA technology
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