I really confused between SNP and mutation. SNP can occur more than 1% in each column. If the SNP occurs less than 1% then it is considered as a mutation. if in the same column two nucleotides have been changed in the same position and the percentage of their occurrence together is less than 1% then there are two mutations in the same position.
Is these info correct ? Please I have searched a lot and didn't find enough answer. I am a computer science students I am not a biologist.