Which of the following is an example of a spontaneous mutation? Yeast DNA is exposed to...
Which of the following is an example of a spontaneous mutation?
| Yeast DNA is exposed to acridine dye, resulting in distortion of the DNA double helix. |
| Human cells are exposed to X-rays for a prolonged period of time, leading to multiple DNA strand breaks. |
| DNA polymerase III accidently mismatches a G to a T during Escherichia coli DNA replication, resulting in a silent mutation. |
| Plasmodium vivax cells are exposed to ultraviolet radiation, leading to the formation of thymine dimers within the DNA sequence |
Homework Answers
Spontaneous mutations are produced naturally due to errors in DNA replication or due to other biological process.
Induced mutations are caused by some external agent like acridine dye in option a X-rays in option b and ultra violet rays in option D.
Correct option- C (DNA polymerase III accidently mismatches a G to a T in E. coli DNA replication resulting in a silent mutation).
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