Variation

Question 1

Define variation

Answer 1

The presence of differences between living things of the same species. Variation is usually greater between different species than within a species.

Question 2

What are the 2 types of variation?

Answer 2

Inherited (Genes) and Environmental

Question 3

INHERITED CAUSES OF VARIATION
Variation in a characteristic that is a result of (1)_________ information from the (2)______ is called (3)______ variation.

Answer 3

1. Inherited
2. Parents
3. Genetic

Question 4

Give some examples of inherited causes of variation.

Answer 4

Eye colour
Hair colour
Skin colour

Question 5

Give some examples of environmental causes of variation.

Answer 5

Language

Religion

Question 6

Describe the genes for inherited variation.

Answer 6

Eggs carry 'x' chromosomes
Sperm carry 'x' or 'y' chromosomes
After a sperm and egg fuse (fertilisation) occurs
Females are 'x' 'x'
Males are 'x' 'y'

Question 7

Define continuous variation

Answer 7

Characteristic that changes gradually over a range of values

Question 8

Define discontinuous variation

Answer 8

Characteristic that only has a limited amount of possible values