Chromosome Mutation

• 1. Duplication – a section of a chromosome is added from its homologous partner.

  (You inherit 2 copies of each chromosome, one from each biological parent. These chromosomes are homologous partners. For example, in this type of mutation part of chromosome 1 is added to the other chromosome 1.)
• 2. Deletion is where a section of the chromosome is removed.
• 3. Inversion is where a section chromosome is reversed.
• 4. Translocation is where a section of a chromosome is added to a chromosome, not its homologous partner.
• The substantial changes in chromosome mutations often make them lethal.