Mutation termanology - confused

[spherelin]

Hi,

Just wondering, does anyone know the difference between:
- point mutation, gene mutation and chromosome mutation?
I have a feeling point and gene mutation are the same thing... hahaha, not sure though.
thanks!

[Daenerys Targaryen]

point mutation is when one base is changed from the expected sequence e.g. AGG CCC GGG would become ACG CCC GGG it could occur anywhere along the sequence

gene mutations: havent got a clue

chromosome mutations: i have a feeling its the translocation, inversion, polyploidy stuff

[spherelin]

^ thanks for that
does anyone have a clue what 'gene mutation' is then? hahaha

[Daenerys Targaryen]

Gene mutation is the general term given to the change in base sequence of DNA. Substitution, addition or
deletion are such examples