Microevolution

Question 1

What is a mutation?

Answer 1

change in genetic information (nucleotide sequence) of an organism’s DNA

Question 2

How do mutations arise?

Answer 2

errors during DNA replication/recombination

errors introduced when repairing DNA damage

errors induced by environmental or chemical mutagens

Question 3

What are the types of mutations

Answer 3

small scale
substitution - when a single
nucleotide is replaced by another
silent mutation and
replacement mutation

 Insertion/deletion - when one or 
 more nucleotide are added or 
 removed

Large scale
mutations in chromosomal
structure like translocations,
inversions, duplications,
chromosomal loss.