| Direction: Each of these questions contains two statements |
| Assertion [A] and Reason [R]. Each of these questions also has four alternative choices, any one of which is the correct answer. You have to select one of the codes [a], [b], [c] and [d] given below. |
| Assertion [A] DNA acts as a genetic material in all organisms. |
| Reason [R] It is a double-stranded biomolecule in most organisms. |
A) Both A and Rare true and R is the correct explanation of A
B) Both A and R are true, but R is not the correct explanation of A
C) A is true, but R is false
D) A is false, but R is true
Correct Answer: D
Solution :
[d] A is false, but R is true. A can be corrected as DNA serves as the genetic material in most organisms, but in some viruses like TMV, RNA acts as the genetic material. DNA is a double-stranded biomolecule, but can also exist as a single-stranded biomolecule.
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