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CELLULAR MUTATION

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Page 1: Cellular Mutation

CELLULAR MUTATION

Page 2: Cellular Mutation

MUTATIONSA mutation is: any change in the nucleotide sequence of DNA

Sickle cell disease

Page 3: Cellular Mutation

Causes of mutations•Mutagens

•X-Rays without protection

•Radiation

•Errors during DNA replication or during crossing over in meiosis

Page 4: Cellular Mutation

Types of mutations:

Two types of mutations:

Base substitution: Insertion/Deletion:

The replacement of one base or nucleotide with another, does not always cause a mutation

More serious type of mutation,effects which amino acids are formedduring DNA replication

Page 5: Cellular Mutation

Cancer as a type of

mutation

Mutagens, which cause mutations have another formcalled carcinogens which cause cancer

For example: lung cancer.

Tobacco smoke contains over 50 carcinogenswhich can lead to lung (picture), larynx, head, neck, stomach, bladder, kidney, esophagus and pancreas cancer

Page 6: Cellular Mutation

However, not all mutations are bad

Camouflage

Color variation

Help in fending off predators

Page 7: Cellular Mutation
Page 8: Cellular Mutation

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Information by:

James McLaren. Biology Exploring Life 2005

Wikipedia


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Cellular & Molecular Biology SQBS 1143ocw.utm.my/file.php/43/Chapter_7_Mutations.pdfmolecular biology. A mistake in a cell's genetic material is known as a mutation. At the molecular

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