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NEET2012ZoologyPrinciples of Inheritance and VariationActual

Which one of the following is a wrong statement regarding mutations?

Options

  1. ADeletion and insertion of base pairs cause frame-shift mutations
  2. BCancer cells commonly show chromosomal aberrations
  3. CUV and gamma rays are mutagens
  4. DChange in a single base pair of DNA does not cause mutaiton

Correct answer

D. Change in a single base pair of DNA does not cause mutaiton

Step-by-step solution

Change in single base pair of DNA cause mutation as if it mutated to termination codon or other amino acid codon specific. Cancer is the uncontrolled process of cell division. The causal agents are certain chemicals, radiation, viruses that behave as mutagen by acting at DNA. It is believed that cancer is a genetic disease caused by multiple mutation within the DNA.

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