Genetic diversity and adaptation

Question 1

Mutation

Answer 1

Any change to the quantity or the base sequence of the DNA of an organism

Question 2

When do mutations occur?

Answer 2

During formation of gametes

Question 3

Gene Mutation

Answer 3

Any change to one or more nucleotide bases, or a change in the sequence of bases in DNA.

Gene mutations can arise spontaneously during DNA replication and include base substitution and base deletion.

Question 4

Substitution

Answer 4

A nucleotide in a DNA molecule is replaced by another nucleotide that has a different base.

Different polypeptide will be produced therefore different amino acid is coded for.