Variation And Evolution Flashcards
1
Q
Classification
A
Placing organisms into similar groups
2
Q
Taxonomy
A
The study of classification
3
Q
Species
A
A group of organisms capable of interbreeding to produce fertile offspring
4
Q
Mutations
A
A change in the structure of DNA
5
Q
The two types of mutations
A
Gene mutation
Chromosome mutation
6
Q
Chromosome mutation
A
A large change in the structure or number of one or more chromosomes
7
Q
Mutagens
A
Agents that cause mutation
8
Q
Causes of mutation
A
Radiation e.g UV light
Chemicals e.g cigarette smoke
9
Q
Variation
A
Differences within a species
10
Q
2 sources of variation
A
Sexual reproduction
Mutations
11
Q
Types of variations
A
Inherited variations - cause by genes eg hair colour
Acquired variations - learned during life eg language
12
Q
Evolution
A
Genetic changes in a species, in response to their environment
