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Transcript
Mutations
A. Gene Mutation
1. Def. – changes in a single gene effecting one or a few
nucleotides.
2. Point Mutations (ex: substitution)
a. effect is usually minimal – only effects one amino acid
3. Frameshift Mutation (ex: insertion, deletion)
a. effect is dramatic – many amino acids effected; entire
protein many be “damaged”
B. Chromosomal Mutation
1. Def. – change in the number or structure of chromosomes
2. Deletions – part of the chromosome is deleted and lost
3. Duplication – extra parts of the chromosome are copied
4. Inversion – reverses parts of the chromosome
5. Translocation – two different chromosomes break and attach
to one another