Question

in an experiment, a scientist makes a radioactively labeled probe using yeast dna. she then discovers that the probe hybridizes to a small segment of dna isolated from a fruit fly. what can she conclude from her results? a. the scientist is unlikely to become a tenured professor at her university. b. a fruit fly accidentally wandered into the test tube containing the probe. c. a fruit fly might share at least one gene with a yeast cell. d. the fruit fly recently ate yeast for dinner

Explanation:

DNA hybridization occurs when two complementary DNA sequences bind to each other. Since a yeast - DNA based radioactive probe hybridizes to fruit - fly DNA, it implies some sequence similarity, likely indicating a shared gene.

Answer:

C. A fruit fly might share at least one gene with a yeast cell.