Q. A single strand of nucleic acid tagged with a radioactive molecule is called
A) Probe
B) Vector
C) Selectable marker
D) Plasmid
Explanation
[Solution from source] A probe is a single-stranded DNA or RNA tagged with a radioactive (or fluorescent) molecule that hybridises with its complementary sequence and is detected by autoradiography. Vectors and plasmids carry genes into hosts, and selectable markers identify transformants. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.