B5.1.1 Variation Flashcards
1
Q
Phenotype
A
Observed physical characteristics of an organism
2
Q
Variation
A
Differences within a species
3
Q
Genetic variation
A
Variation caused by organism’s genetic material
4
Q
Environmental variation
A
Variation caused by environment
5
Q
Are most characteristics controlled by one gene?
A
No, most features are caused by multiple genes
6
Q
Discontinuous variation
A
Characteristics which fall into distinct groups, discrete values
(eg. Eye colour, blood type)
Genetic variation
Bar chart
7
Q
Continuous variation
A
Characteristics which can take any value between a minimum and maximum value (height, weight,leaf surface area)
Genetic and environmental variation
Histogram
