genes and the genetic code

Question 1

what is a mutation

Answer 1

a change in the base sequence in amino acids

Question 2

what is a deletion mutation

Answer 2

when a nucleotide is removed from a DNA sequence. This causes a change to the sequence of triplets, known as a FRAMESHIFT

Question 3

substitution mutation

Answer 3

is when one nucleotide is swapped out for another

Question 4

Explain why a mutation may not change the primary structure of a protein.

Answer 4

The mutation could result in a triplet that codes for the same amino acid.
Alternatively, the mutation could occur in a non-coding region.

Question 5

Explain how a mutation can cause a change in the structure of a protein

Answer 5

Some mutations change the sequence of amino acids that are coded for. This can change the hydrogen and ionic bonds and disulfide bridges in a protein, which changes the protein’s tertiary structure.

Question 6

what are lipids

Answer 6

made up of a mix of different, smaller molecules, joined together.

Question 7

Explain how a mutation can cause a change in the structure of a protein

Answer 7

Some mutations change the sequence of amino acids that are coded for. This can change the hydrogen and ionic bonds and disulfide bridges in a protein, which changes the protein’s tertiary structure.