Variation Flashcards
1
Q
What is the mechanism behind evolution?
A
Natural selection by survuval and reproduction of the fittest individuals to their environment
2
Q
Variation
A
Differences in phenotype of an organism
3
Q
Discrete variation
A
Qualitative variation such as colour
4
Q
Continuous variation
A
Quantitative variation such as height and weight
5
Q
Causes of genetic variation
A
Independent assortment and crossing over in meiosis
Random gamete combination during fertilisation
Spontaneous gene mutation
6
Q
Environmental variation
A
Usually responsible for continuous variation
Environmental conditions restricting or enhancing growth
