TCOGE: Alteration of the sequence of bases can later the strucutre of proteins

Question 1

Name the 6 types of mutations:

Answer 1

• Deletion
• Addition
• Duplication
• Substitution
• Inversion
• Translocation

Question 2

What happens in an addition mutation?

Answer 2

• One or more nucleotides are added to a DNA sequence.
• This either causes a frameshift or the addition of an amino acid

Question 3

What happens in a duplication mutation?

Answer 3

• One or more bases are duplicated in the DNA sequence
• This either causes a frameshift or the addition of an amino acid

Question 4

What happens in an inversion mutation?

Answer 4

• A set of nucleotides separate from the DNA sequence and rejoin in the inverse order
• This will affect what amino acids are being coded for.

Question 5

What happens in a translocation mutation?

Answer 5

• A set of nucleotides seprate from the DNA sequence on one chromosome and attach to a different chromosome.
• This can cause changes in gene expression which can result in genes being turned on or off.