Many mutations can be harmful. a mutation that causes a protein not to fold correctly or a specific protein not be produced can cause a cell's growth cycle to spin out of control causing cancer. however, some mutations can be beneficial. give a specific example of a mutation that is beneficial, and a general explanation of how it is so.

Apolipoprotein Al-milano( Apo Aim)

Explanation: Apo Aim is a mutant version of the protein Apolipoprotein Al or Apo al, this mutant protein Apo Aim is more effective than Apo Al at removing cholesterol from cell and desolving arterial plaque and also functions as anti oxidants.

it would affect precipitation by causing flooding in some areas of the world due to climate increasing, causing the glaciers in the northern and southern pole of our planet to melt.

i wish you would have provided choices to simplify it and allow me to give an exact answer.