Which of the following is/are the bases of DNA?
(A) Adenine
(B) Uracil
(C) Thymine
(D) Cytosine

Question

Given below are two statements: Statement I: In the RNA world, RNA is considered the first genetic material evolved to carry out essential life processes. RNA acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive, RNA is unstable.
Statement II: DNA evolved from RNA and is a more stable genetic material. Its double helical strands being complementary, resist changes by evolving repair mechanisms. In the light of the above statements, choose the most appropriate answer from the options given below:

Answer 1

The fundamental units of DNA are specific nitrogenous compounds. These compounds pair to construct the DNA molecule's rungs. The main bases in DNA are:

(A) Adenine
(C) Thymine
(D) Cytosine
Guanine

It is crucial to remember that Uracil is a component of RNA, not DNA. Consequently, the DNA bases present in the given options are Adenine (A), Thymine (C), and Cytosine (D).

Therefore, the correct selection is: (A), (C), and (D) only

List-I	List-II
(A) \(^{8}P_{3} - ^{10}C_{3}\)	(I) 6
(B) \(^{8}P_{5}\)	(II) 21
(C) \(^{n}P_{4} = 360,\) then find \(n\).	(III) 216
(D) \(^{n}C_{2} = 210,\) find \(n\).	(IV) 6720

Which of the following is/are the bases of DNA?
(A) Adenine
(B) Uracil
(C) Thymine
(D) Cytosine

The Correct Option is C

Solution and Explanation

Top Questions on Structure of DNA and RNA

Questions Asked in CUET (UG) exam

Which of the following is/are the bases of DNA?(A) Adenine (B) Uracil (C) Thymine (D) Cytosine

The Correct Option is C

Solution and Explanation

Top Questions on Structure of DNA and RNA

Questions Asked in CUET (UG) exam

Which of the following is/are the bases of DNA?
(A) Adenine
(B) Uracil
(C) Thymine
(D) Cytosine