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Deoxyribonucleic acid

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Introduction

Deoxyribonucleic acid 4 Units 1. Adenine (A) 2. Cytosine (S) 3. Guanine (G) 4. Thymine (T) DNA molecules are exceedingly long polymers and exist as two chains, which come together to form a double helix. ...read more.

Middle

There are about 100000 genes coded in our DNA. The enzyme RNA polymerase has a critical role in converting DNA sequences into corresponding mRNA sequences in a process called TRANSCRIPTION. The mRNA then read in groups of 3 bases and can be translated in a particular protein. ...read more.

Conclusion

Only a cell uses a proportion of the genetic information. There must be a control mechanism to switch genes on or off and regulators to increase or decrease enzymes needed by a cell. Contains all information required to form all the different cell types in our body ...read more.

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