A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: E
Solution :
Spontaneous mutations are those that occur without a known cause. They may be truly spontaneous, resulting from an inherent low level of metabolic errors, that is mistakes during DNA replication or they may actually be caused by mutagenic agents presents in the environment. Induced mutations are those resulting from exposure of organisms to mutagenic agents such as ionizing, irradiation, ultraviolet light or various chemicals that react with DNA.
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