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Lab Bio
Chapter 10 Sec. 2
| Question | Answer |
|---|---|
| What is a mutation? | When there is a mistake in genetic info |
| Are all mutations harmful? | no |
| What can some mutations be? | have little effect or slight or harmless changes |
| What are germ mutations | mutations that affect gametes and are inheritable |
| What is somatic mutation? | mutations that affect body cells and are not inheritable |
| What is caused by somatic mutations | cancer |
| What is chromosomal mutations | involve segments of chromosomes, whole chromosomes, or sets of chromosomes |
| What are gene mutations? | involve individual genes |
| What is deletion? | loss of part of chromosome |
| what is duplication? | segment of a chrom is repeated |
| What is inversion? | chromsome is oriented in reverse direction |
| What is translocation? | one part of a chromosome breaks off and attaches to another non-homologous chromosome |
| What does non-disjunction cause? | chromosomal mutations that involve whole chromosme or sets of chromosomes |
| Nondisjuction involving one chromosome causes 1 cell to have an extra copy and one cell to have 1 less chromosome following meiosis | (blank) |
| What is a triploid? | if a cell has 1 extra copy of all chromosomes |
| Whats a tetraploid? | if a cell has 2 extra sets of chromosomes |
Created by:
lorelai91492
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