The DNA chain acting as template for RNA synthesis has the following order of bases, AGCTTCGA. What will be the order of bases ?

Options

A. TCGAAGCT
B. UGGAAGUC
C. UCGAAGCU
D. UGCUAGCT

Answer

To solve the question regarding the order of bases in the RNA synthesized from the given DNA template (AGCTTCGA), we can follow these steps:

### Step-by-Step Solution:

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

2. **Understand Base Pairing Rules**:
In RNA synthesis (transcription), the base pairing rules are as follows:
- Adenine (A) pairs with Uracil (U) in RNA (instead of Thymine, which is found in DNA).
- Guanine (G) pairs with Cytosine (C).
- Cytosine (C) pairs with Guanine (G).
- Thymine (T) in DNA pairs with Adenine (A) in RNA.

3. **Transcribe the DNA Sequence to RNA**:
Using the base pairing rules, we will transcribe each base of the DNA template to its corresponding RNA base:
- A (from DNA) → U (in RNA)
- G (from DNA) → C (in RNA)
- C (from DNA) → G (in RNA)
- T (from DNA) → A (in RNA)
- T (from DNA) → A (in RNA)
- C (from DNA) → G (in RNA)
- G (from DNA) → C (in RNA)
- A (from DNA) → U (in RNA)

4. **Write the Resulting RNA Sequence**:
Following the transcription, we get the RNA sequence:
- UCGAAUCG

5. **Final RNA Sequence**:
The final order of bases in the RNA synthesized from the DNA template AGCTTCGA is UCGAAUCG.

### Summary of the Result:
The order of bases in the RNA synthesized from the DNA template AGCTTCGA is **UCGAAUCG**.

---