Question

Assertion (A): The genetic material should be stable enough not to change with different stages of life cycle, age, with change in physiology of organism. Reason (R): stability of genetic material is clearly evidenced with transforming principle.

• A. Both (A) and (R) are correct and (R) is the correct explanation to (A)
• B. Both (A) and (R) are correct but (R) is not correct explanation for (A)
• C. (A) is correct (R) is wrong
• D. (A) is wrong (R) is correct

Hint:

DNA must be stable to remain constant through time and change!

Answer 1

The Correct Option is B

Step 1: Restate the parts.
Assertion: genetic material should be stable and not change with life stage, age, or physiology. Reason: this stability is shown by the transforming principle.

Step 2: Judge the assertion.
A is correct. For information to pass safely from parent to offspring and within a body, the genetic material must stay stable.

Step 3: Judge the reason.
R is also correct. Griffith's transforming principle, later shown to be DNA, kept passing on the same trait, proving the genetic material is stable.

Step 4: Do they connect.
Both are true, but the reason talks about evidence from one experiment. The assertion is about why stability is needed across life. So R supports the idea but does not directly explain the assertion.

Step 5: Pick the matching option.
Both A and R correct, but R is not the correct explanation of A.

Step 6: Conclusion.
Therefore the correct answer is "Both (A) and (R) are correct but (R) is not correct explanation for (A)". \[ \boxed{\text{A and R true, R not the explanation}} \]