Assertion : Senescence is the time when age associated defects are manifested.Reason : Certain genes may be undergoing sequential switching on and off during one's life.
- A(a) Both Assertion & Reason are true and the reason is the correct explanation of the assertion
- B(b) Both Assertion & Reason are true but the reason is not the correct explanation of the assertion
- C(c) Assertion is true statement but Reason is false
- D(d) Both Assertion and Reason are false statements
Solution & Step-by-step Explanation
Senescence is the biological process of aging, where cumulative changes lead to a decrease in functional capacity and the manifestation of age-associated defects. This is a genetically controlled program regulated by genes that may switch on and off at different stages of life. Both statements are true and the reason provides the genetic basis for why these defects appear.