U1: L14: Inherited and environmental variation

Question 1

What are variations?

Answer 1

Differences between individuals of the same species

Question 2

What is the reason for variation?

Answer 2

Differences may be due to genes; inheritance or the environment or both​

Question 3

What are some characteristics that are controlled only by genes?

Answer 3

Eye colour
Sex gender
Blood group
Natural hair colour

Question 4

What is inherited variation?

Answer 4

Characteristics caused by genes found in the nucleus of all cells, which are passed down from your parents.

Question 5

What is environmental variation?

Answer 5

Characteristics caused by influences in the surroundings which are not passed down from your parents.

Question 6

What is continuous variation?

Answer 6

One of a large range of values

Question 7

What kind of graph is used for continuous variation?

Answer 7

bell shaped chart

Question 8

What is discontinuous variation?

Answer 8

One of fixed values

Question 9

What kind of graph is used for discontinuous variation?

Answer 9

bar chart

Question 10

Example of continuous variation?

Answer 10

Height
Shoe size

Question 11

Example of discontinuous variation?

Answer 11

Eye colour
Hair colour