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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.
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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 Heat to 60oC bacteria died
Heated Smooth Rough Rough Heated Smooth Heated Smooth Heated smooth bacteria mixed with rough can cause mouse dead Rough Some things transmit to rough. Transforming Principle
Phosphate base Ribose Adenine Cytosine Guanine Thymine Nucleic Acids Purine Pyrimidine
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 Semiconservative Replication
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.
Translation ANIMATION
Use of DNA technology Funny Website