Question

A probe which is a molecule used to locate specific sequences in a mixture of DNA or RNA molecules could be __________________.

• A. A single stranded RNA
• B. A single stranded DNA
• C. Either RNA or DNA
• D. Can be ssDNA but not ssRNA

Answer 1

The correct option is B A single stranded DNA

The molecular probes are usually single-stranded places of DNA (sometimes RNAs) labeled with radioisotopes such as phosphorus- 32. Molecular probes are available for many genetic disorders such as Duchenne muscular dystrophy, cystic fibrosis, Tay-Sachs disease.