DNA probes have been very useful in
A) coding the DNA of organisms grown in vivo.
B) identifying organisms in pure culture.
C) detecting toxins.
D) diagnosing diseases of protozoa.
E) sequencing rRNA genes.

Question

DNA probes have been very useful in
A) coding the DNA of organisms grown in vivo.
B) identifying organisms in pure culture.
C) detecting toxins.
D) diagnosing diseases of protozoa.
E) sequencing rRNA genes.

Quizplus · Accepted Answer

DNA probes are commonly used in identifying organisms in pure culture. They are small segments of DNA that are complementary to a target sequence and are labeled with a fluorescent or radioactive marker. When the probe binds to the target DNA sequence, it can be detected using various methods, such as fluorescence microscopy or autoradiography. This allows for the rapid and accurate identification of microorganisms in clinical or environmental samples. While DNA probes can also be used for other applications, such as detecting toxins or diagnosing diseases of protozoa, identifying organisms in pure culture is their primary use.

DNA Probes Have Been Very Useful in