A) Deletion and insertion of base pairs cause frame-shift mutations
B) Cancer cells commonly show chromosomal aberrations
C) UV and gamma rays are mutagens
D) Change in a single base pair of DNA does not cause mutation
Correct Answer: B
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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