Multiple choice

Identify the incorrect statement.

  1. Hetero-duplex is a double-stranded DNA molecule or DNA-RNA hybrid.

  2. In vitro synthesis of a gene of interest using two sets of primers and the enzyme DNA polymerase is called polymerase chain reaction.

  3. The coating of a protein that encloses the nucleic acid core of a virus is called capsid.

  4. Each of the two daughter strands of a duplicated chromosome joined at the centromere during mitosis and meiosis is called chromatid.

  5. The cutting of DNA by restriction endonuclease results in the fragments of DNA which has positive charge.
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E Correct answer
Explanation

The cutting of DNA by restriction endonuclease results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis. DNA fragments are negatively charged molecules and can be separated by forcing them to move towards the anode under an electric field through a medium.

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