Development - Mutations • What is a mutation • What...

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Unformatted text preview: Mutations • What is a mutation? • What kinds of mutations are there? o Point mutations o Chromosomal mutations • What causes mutations? • How do mutations affect individuals and populations? • We’ve seen that the sequence of nucleotides (and their bases) is copied during DNA synthesis o prior to making new somatic cells ( Mitosis ) o prior to making gametes ( Meiosis ) • We’ve seen that the sequence of nucleotides is copied during RNA synthesis ( Transcription ) • A very large percent of the time these copies are accomplished perfectly – resulting DNA is an exact replica of the original • Occasionally, there are errors in copying DNA so that the DNA of a new cell has a different sequence of nucleotides (bases) than the DNA in the original cell • Future cells resulting from the new cell will also be made based on copying the new and different DNA...
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This note was uploaded on 04/30/2008 for the course BIO 101 taught by Professor Wetherbee during the Fall '08 term at Rhode Island.

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Development - Mutations • What is a mutation • What...

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