If the sequences of bases in DNA is ATTCGATG, then the sequence of bases in its transcript will be

Options

A. GUAGCUUA
B. AUUCGAUG
C. CAUCGAAU
D. UAAGCUAC

Answer

To find the sequence of bases in the transcript (mRNA) from the given DNA sequence (ATTCGATG), we need to follow these steps:

### Step-by-Step Solution:

1. **Identify the DNA Sequence**: The given DNA sequence is ATTCGATG.

2. **Understand the Transcription Process**: During transcription, the DNA sequence is used as a template to synthesize mRNA. The mRNA is complementary to the DNA template strand.

3. **Determine the Complementary Bases**: In DNA, the base pairing rules are as follows:
- Adenine (A) pairs with Uracil (U) in RNA (instead of Thymine (T) in DNA).
- Thymine (T) pairs with Adenine (A).
- Cytosine (C) pairs with Guanine (G).
- Guanine (G) pairs with Cytosine (C).

4. **Transcribe the DNA Sequence**:
- A (from DNA) pairs with U (in mRNA)
- T (from DNA) pairs with A (in mRNA)
- T (from DNA) pairs with A (in mRNA)
- C (from DNA) pairs with G (in mRNA)
- G (from DNA) pairs with C (in mRNA)
- A (from DNA) pairs with U (in mRNA)
- T (from DNA) pairs with A (in mRNA)
- G (from DNA) pairs with C (in mRNA)

5. **Write the mRNA Sequence**: Following the base pairing rules, the mRNA sequence that corresponds to the DNA sequence ATTCGATG will be:
- UAA (from A)
- AUU (from T)
- CGC (from C)
- UAC (from A)
- C (from G)

Thus, the complete mRNA sequence is: **UAAGCUAC**.

### Final Answer:
The sequence of bases in the transcript (mRNA) will be **UAAGCUAC**.