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 - DNA hybridization occurs when complementary DNA sequences bind to each other. Since a yeast - DNA based probe hybridizes to fruit - fly DNA, it implies that there are complementary sequences, which likely means they share at least one gene. Options A, B, and D are not logical conclusions based on the hybridization result.

Answer:

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