Which base is found only in DNA?AdenineGuanineCytosineThymine

Step 1: Define the Problem

Identify which base is unique to DNA among the given options.

Step 2: Break Down the Problem

List the bases provided and determine which are found in both DNA and RNA, and which is exclusive to DNA.

Step 3: Apply Relevant Concepts

• Adenine (A): Found in both DNA and RNA.
• Guanine (G): Found in both DNA and RNA.
• Cytosine (C): Found in both DNA and RNA.
• Thymine (T): Found only in DNA.

Step 4: Analysis, Verify and Summarize

Thymine is the base that is unique to DNA, as RNA contains uracil instead of thymine.

Final Answer

Thymine