Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Lesson 36
Change and Mutations
| Question | Answer |
|---|---|
| Gradualism | the slow and gradual processes that are believed to have occurred over millions of years |
| Punctuated Equilibrium | a theory that explains gaps in the fossil record. It is characterized by long stable periods in earth’s history interrupted by brief periods of change |
| Mutation | a mistake, defect, or change in the genetic code, they can be either positive, negative, or neutral |
| Zoologist | a person who studies animals |
| Mutagens | substances or agents that can alter the structure of DNA, causing a mutation |
| Mitosis | the process of cell division that results in two identical cells |
| Deletion | this occurs when a chromosome is lost during mitosis |
| Duplication | the process during which chromosomes get replicated (copied) during mitosis |
| Inversion | this occurs during mitosis when a chromosome becomes oriented in the reverse of its usual direction |
| Translocation | this occurs when a piece of chromosome gets broken off and attaches to another chromosome during mitosis |
| Nondisjunction | this occurs when chromosomes do not separate correctly during meiosis |
| Nucleotide | a nucleic acid that is made up of three parts: a sugar, phosphate, and a base that contains nitrogen. There are five different bases that make up DNA |
| Point Mutation | a gene mutation that involves a single nucleotide |
| Frame Shift Mutation | a gene mutation that involves the deletion or insertion of a nucleotide, thus changing the grouping of codons |
| Cancer | uncontrolled cell division resulting in tumors |
Created by:
ecotteacher
Popular Biology sets