WorksheetsN5 Biology - Variation
Total questions: 10
Worksheet time: 9mins
Most variation is
discrete and controlled by one gene
continuous and controlled by one gene
discrete and polygenic
continuous and polygenic
What type of variation is eye colour, blood type and tongue rolling? (watch your spelling!)
(a)
What does polygenic mean?
One gene controls the feature
More than one gene controls feature
No genes involved
One gene controls many features
Tree height is an example of...
discrete variation
disruptive variation
continuous variation
discontinuous variation
What type of graph is used to show discrete variation? (hint - select 2)
Line graph
Bar graph
Pie chart
Histogram
Eye colour is...
discrete
continuous
discontinuous
complete
Shoe size is...
continuous
discontinuous
discrete
concrete
What type of graph is used for continuous variation? (hint: choose 2)
Bar graph
Line Graph
Histogram
Pie chart
Can discrete variation ever change
Yes - as you get older
No - your genes are decided from birth
Yes - if you are bitten by a radioactive spider
If you practice enough, you can roll your tongue
Which of these is NOT coninuous?
Length of roots
Hand span
Heart rate
Blood type
