The given question is incomplete. The complete question is:
Question: If the DNA of a representative species from each of the major kingdoms was examined, the sequences coding for which of following would be expected to be most similar?
A. Photosynthesis
B. Cholesterol synthesis
C. Protein modification
D. DNA synthesis
Answer:
D. DNA synthesis
Step-by-step explanation:
DNA synthesis refers to the production of new DNA molecules by copying the sequence of existing parental DNA template strand. The process of DNA synthesis is exhibited by all the living organisms irrespective of the kingdom they belong to. The basic process of DNA synthesis is also the same in them. DNA polymerase is the main enzyme of DNA replication in all the organisms. Therefore, sequences coding for the proteins or enzymes involved in the process of DNA synthesis would be most similar among the organisms of each of the major kingdoms.