18) The following are true characteristics of prokaryotic cells except A. Complex in cellular structure B. Are unicellular and extremely microscopic C. May occur singly, in pairs, chain and clusters. D. Members are from kingdom eubacteria and arcahaebacteria​

A. Complex in cellular structure

dna damages cause changes in the structure of the genetic material and prevents the replication mechanism from functioning and performing properly. dna damage and mutation have different biological consequences. while most dna damages can undergo dna repair, such repair is not 100% efficient.

answer; polycythemia is the correct answer;