In an experiment, a scientist makes a radioactively labeled probe using human dna. she then discovers that the probe hybridizes to a small segment of dna isolated from a plant. what can she conclude from her results? a. the plant might have a gene that is similar to a human gene. b. the wrong method was used to detect radioactively labeled dna. c. a plant cell has a cell wall, whereas a human cell does not. d. plant dna was accidentally used as a template to make the probe.