DNA
- Created by: EleanorRose.
- Created on: 09-02-15 10:24
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- DNA
- Structure of DNA
- Made up of 3 base components to make a nucleotide
- Deoxyribose
- A phosphate group
- An organic base
- Single ring base
- Cytosine and thymine
- Double ringed base
- Adenine and guanine
- Have longer molecules
- Have shorter molecules
- Single ring base
- Combined by a condensation reaction
- DNA is made up of 2 strands of nucleotides
- Joined together by hydrogen bonds
- Formed between certain bases
- Joined together by hydrogen bonds
- Organic bases are made of nitrogen
- Adenine and thymine form 2 hydrogen bonds
- Guanine and Cytosine form 3 hydrogen bonds
- The double helix has 10 base pairs
- Made up of 3 base components to make a nucleotide
- Function of DNA
- It is a hereditary material the passes on genetic information
- 2 separate strand that are joined by hydrogen bonds
- Allows it to separate during replication and protein synthesis
- Stable and can pass through generations with out change
- Very large molecule
- Can carry a lot of genetic information
- Genes
- Section of DNA that codes for information making polypeptides
- Usually a specific sequences of bases
- Polypeptides combine to make proteins
- Genes determine the protein organism
- Enzymes are proteins
- A gene is a sequence of DNA bases the determine a polypeptide
- Polypeptides are a sequence of amino acids
- Section of DNA that codes for information making polypeptides
- Bases come in a minimum of 3
- Only 20 Amino acids occur in proteins regularly
- Each amino acid has its own code of bases
- Some amino acids have more than one code
- Only 4 different bases
- Triplet code
- Prokaryotic cells, DNA is smaller, circular and not associated with a protein
- Eukaryotic cells, DNA is linear and associated with proteins
- Structure of DNA
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