Nat 5 2.4 Variation and Inheritance

What are some examples of discrete variation?

• Eye colour

• Height

• Hair colour

• Blood type

What are discrete characteristics determined by?

• Multiple genes

• 2 genes

• Single genes

• 12 Genes

What kind of graph do we usually use to represent discrete variation?

• Bar graph

• Histogram

• Line graph

• Scatter Graph

What are the differences between members of the same species called?

• Characteristics

• Niche

• Variation

• Ecosystem

Choose the correct word for this definition.

The differences that have a range of vales and therefore cannot easily be placed in groups

• Recessive

• Continuous variation

• Discrete variation

• Characteristics

What sort of graphs are used to represent continuous variation data?

• Histogram

• Bar chart

• Line graph

• Scatter graph

What is the definition of polygenic?

• Controlled by different genes

• Controlled by many genes

• Controlled by one gene

• Controlled by no genes

What is an example of continuous variation?

• Weight

• Height

• Arm span

• All of these

What is an allele?

• The form of the gene.

• A single piece of genetic information made from DNA

• The appearance of the characteristic of an individual

• The combination of genes that an organism has

What does it mean for an allele to be dominant

• The appearance of the characteristic in an individual

• The allele that is always expressed in the appearance of an organism

• The allele that is only expressed in appearance if paired with another