Adaptation,natural Selection and the evolution of species Flashcards
1
Q
What is a random change to genetic material?
A
A mutation
2
Q
Examples of mutations
A
Down syndrome, sickle cell anaemia and skin cancer
3
Q
Causes of mutations
A
Uv light, gamma rays and x-Rays
4
Q
What is Evolution by natural selection?
A
Change of a phenotype over many generations
5
Q
Examples of natural selection
A
Dark peppered moths
6
Q
How do you increase the rate of mutation
A
By radiation
7
Q
What can cause Variation?
A
Mutation
8
Q
What can cause variation to be passed on to offspring?
A
Variation can be passed on to offspring because reproduction involves passing on genes
