Variation Flashcards
1
Q
What is genetic variation?
A
No two of the species are genetically identical
2
Q
What is environmental variation?
A
When the environment also causes differences between members of the same species
3
Q
What are some examples of characteristics determined by genetic or environmental factors?
A
Body weight
Height
Skin colour
Condition of teeth
4
Q
Give an example of how height is determined by genes but also environmental factors
A
The maximum height an animal can reach is
already determined by the genes but whether it grows that tall depends on its environment
5
Q
What are mutations?
A
Changes to the sequences of bases in DNA
