Question
Easy
In genetic fingerprinting, the 'Probe' refer to
1
a radioactively labelled double stranded RNA molecule
2
a radioactively labelled single stranded DNA molecule
3
a radioactively labelled single stranded RNA molecule
4
a radioactively labelled double stranded DNA molecule
Question Details
Time to Solve: 12
Exam: HTET
Level/Paper: HTET_L3
Chapter:
Topic:
Correct Answer
Option B
Explanation
The correct option is 2: a radioactively labelled single stranded DNA molecule. The 'probe' is the crucial component in the detection phase of genetic fingerprinting, a technique most famously associated with Restriction Fragment Length Polymorphism (RFLP) analysis using Southern blotting. A probe is fundamentally a short segment of nucleic acid that has a nucleotide sequence precisely complementary to a specific, highly variable target region of the human genome, such as…Read More
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