If the sequences of bases in a segment of a DNA strand were adenine, thymine, cytosine, guanine, then the sequence in a complementary strand of newly made mRNA would be ............... .

Explanation

To find the sequence of bases in a complementary strand of newly made mRNA from a given DNA sequence, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the DNA Sequence**: The DNA sequence provided is adenine (A), thymine (T), cytosine (C), and guanine (G).

2. **Understand Base Pairing Rules**: In DNA to RNA transcription, the base pairing rules are as follows:
- Adenine (A) in DNA pairs with Uracil (U) in RNA.
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