This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
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? Weve 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 ) Weve 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...
View Full Document