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Nitrogen bases of DNA are...

Nitrogen bases of DNA are

A

ATUC

B

UTGC

C

ATGC

D

AUGC.

Text Solution

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The correct Answer is:
To answer the question "What are the nitrogen bases of DNA?", we can follow these steps: ### Step 1: Identify the nitrogenous bases present in DNA DNA contains four nitrogenous bases: 1. Adenine (A) 2. Thymine (T) 3. Cytosine (C) 4. Guanine (G) ### Step 2: Distinguish between DNA and RNA nitrogenous bases - In DNA, the bases are A, T, C, and G. - In RNA, the bases are A, U (uracil), C, and G. Note that thymine (T) is replaced by uracil (U) in RNA. ### Step 3: Analyze the provided options The options given are: - A) ATUC - B) UTGC - C) ATGC - D) AUGC Now we will evaluate each option: - **A) ATUC**: Contains uracil (U), which is not found in DNA. Incorrect. - **B) UTGC**: Contains uracil (U), which is not found in DNA. Incorrect. - **C) ATGC**: Contains adenine (A), thymine (T), guanine (G), and cytosine (C). This is correct. - **D) AUGC**: Contains uracil (U), which is not found in DNA. Incorrect. ### Step 4: Conclusion The correct answer is **C) ATGC**, which represents the nitrogenous bases of DNA. ---
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