Ionizing radiations can be captured by a Geiger counter. It can indicate where radioactively marked DNA is generally located. Thus, option b is correct.
What is radioactively labeled DNA?
Radioactively labeled DNA is the enzyme-labeled (DNA polymerase) and incorporated sequences of nucleic acid used for detection and analysis. A Geiger counter can be used to locate the nucleic acid as it can measure and detect the gamma rays emitted by the ionized and radiolabelled DNA.
Therefore, a radioactively labeled DNA can be located by a Geiger counter.
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