what is a mutation gcse
Mutations are the changes in the DNA sequence. Or in other words, changes in parts of genes in chromosomes. The base sequences are messed up! Sometimes as little as one base might be missing or it could be a few.On other occasions a couple of bases might be swapped around.It is also possible that during meiosis parts of chromosomes get damaged. If the genetic instructions are wrong what it does will also be wrong.ometimes as little as one base might be missing or it could be a few. On other occasions a couple of bases might be swapped around. It is also possible that during meiosis parts of chromosomes get damaged.