Genetics of living systems

Question 1

What is a mutation

Answer 1

A change in the sequence of bases in DNA

Question 2

Possible ways a mutation affects a gene

Answer 2

• Insertion/ deletion of a nucleotide( frameshift mutation) changes the reading sequence of every successive codon
• Substitution of a nucleotide (point mutation) can change the primary structure of a protein
• Mutations can be damaging, have no effect, or be beneficial