Mutations are avoided during replication because dna polymerase is able to a.) repair itself b.) repair the dna c.) encode a message d.) add more codes

Meanwhile DNA construction, maximum DNA polymerases "review their performance," getting the bulk of mis-paired bases in a method called proofreading. Shortly after DNA synthesis, any left mis-paired bases can be identified and substituted in a procedure called mismatch repair. If DNA gets destroyed, it can be fixed by different mechanisms, including chemical repeal, excision restoration, and double-stranded break repair.

i think its

explanation:

v=uf/(u-f)

= 5.-10/(5+10) convex lens has negative focal length