If the sequence of bases in coding strand of DNA is ATTCGATC, then the sequence of bases in mRNA will be

Options

A. TA A C T AC
B. U A A G C U A C
C. A T T C G A TG
D. AUUCGAUG

Explanation

To determine the sequence of bases in mRNA from the given coding strand of DNA, follow these steps:

### Step-by-Step Solution:

1. **Identify the Coding Strand**: The coding strand of DNA is given as ATTCGATC.

2. **Understand Base Pairing**: In RNA, adenine (A) pairs with uracil (U) instead of thymine (T), which is found in DNA. The other base pairings remain the same: cytosine (C) pairs with guanine (G).

3. **Transcribe the DNA Sequence to mRNA**:
- Replace each base in the coding strand with its corresponding RNA base:
- A (adenine) → U (uracil)
- T (thymine) → A (adenine)
- C (cytosine) → G (guanine)
- G (guanine) → C (cytosine)

4. **Apply the Transcription**:
- For the sequence ATTCGATC:
- A → U
- T → A
- T → A
- C → G
- G → C
- A → U
- T → A
- C → G

5. **Write the mRNA Sequence**: After replacing all the bases, the resulting mRNA sequence will be:
- UAAUGCUA

### Final Answer:
The sequence of bases in mRNA will be **UAACGAUC**.