Dioxyribose Neucleic Acid

• A 5 carbon sugar (Ribose)
• A nitrogen containing base (A, T, G, C)
• A phospate group

Bases

• A - adenine
• T - thymine
• G - guanine
• C - cytosine

The bases come in two types - Purines (A & G) and Pyrimidines (C & T)

Purines

Pyrimidine

DNA is a Chain with many repeated elements

The Chain has two sides that "wrap around" each other in a spiral

User controllable animations of DNA

The long chains fold up to form 3-Dimensional molecules

Interesting sites related to DNA

• DNA can replicate itself. See here.
• DNA replication animation
• Watson and Crick's original paper
• Watson's Nobel Lecture

Central Dogma of Molecular Biology

• Exlains how DNA is used to control the structure of proteins in biological processes
• DNA -> RNA -> Protein
• Replication
• Transcription
• Translation

• Central Dogma of Molecular Biology explained
• Central Dogma of Molecular Biology pictured
• Central Dogma of Molecular Biology video
• Central Dogma of Molecular Biology Anime Video
• Central Dogma of Molecular Biology MIT Lecture

DNA Sequencing

• DNA sequencing is the determination of the precise sequence of nucleotides in a sample of DNA.
• The human genome project is an example of DNA sequencing
• Sequences determine genes.
• Genes determine characteristics of living organisms

Links to many animations

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