If cells have multiple repair mechanisms to fix mutations in deoxyribonucleic acid, then cells have multiple repair mechanisms to fix mutations in what?

Answer choices:
- Veins and arteries.
 - Most plants
 - the body's largest organ
 - members of their own species
 - wavelengths and photons
 - epidermis and dermis
 - deoxyribonucleic acid
 - peachleaf willow

 

       deoxyribonucleic acid   