Variation Form 5

Which one of the following shows discontinuous variation?

• Eye colour
• Height
• Strength
• Weight

Which one of the following shows continuous variation?

• Blood group
• Height
• Male or female
• Tongue rolling

What type of graph do we use for discontinuous variation?

• A bell-shape
• Bar chart
• Line graph
• Scatter Graph

A chromosome is found to be shorter than it's homologous match.  Which type of mutation would this most likely be?

• insertion
• deletion
• translocation
• inversion

What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A

• Substitution
• Deletion
• Insertion
• Frameshift 

Gene: ABCDEF
Mutation: ACEFCD
What mutation?

• deletion
• substitution
• inversion
• insertion

What are the main causes of mutations?

• Exposure to loud noises

• Lack of exercise

• Eating too much sugar

• Exposure to radiation, chemicals, or errors in DNA replication

Three consecutive nucleotides that specify a single amino acid is known as a(an)

• anticodon

• mutation

• codon

• intron

Proteins are made up of long chains of amino acids called...

• polypeptide chains

• lipid chains

• codons

• anticodons

DNA molecule segment is : TTA-CGC-AAG

The mutated DNA segment is TTC-GCA-AG. This is an example of ___ mutation.

• Substitution

• Deletion

• Insertion

• Inversion