Keywords - diversity + adaptation Flashcards
1
Q
Mutagenic agent
A
Something that increases frequency of mutations above natural rate
2
Q
Frame shift mutation
A
When codons are read by ribosome, reading frame is shifted by one -> different a.acid
3
Q
Point mutation
A
Change to one base in the code of DNA
4
Q
Locus
A
Fixed location where a particular gene is located on a chromosome
5
Q
Genetic diversity
A
Total no. of different alleles in a population
6
Q
Selection
A
Process by which organisms that are better adapted to their environment tend to survive and breed
7
Q
Directional selection
A
Selection which varies in one direction from the mean of the population
8
Q
Stabilising selection
A
Selection which favours average individuals
9
Q
Disruptive selection
A
Selection for extreme phenotypes, can lead to speciation (evolutionary change)
