A Researcher Uses a Probe Complementary to the Gene of Interest

A researcher uses a probe complementary to the gene of interest and performs a colony hybridization experiment on a plate containing many bacterial colonies. Each bacterial colony contains a recombinant vector with a different piece of chromosomal DNA. What can be learned from this experiment?

A) The researcher can determine the level of expression for each gene represented.
B) The researcher can identify colonies that contain the gene of interest.
C) The researcher can identify colonies that have not taken up a vector.
D) The researcher can determine the amount of mRNA in a specific colony.
E) The researcher can determine the amount of DNA in each of the colonies.