The following DNA strand Is usd as a template for transaction 3 CGTAAGCGGCT 5` Which of the following RNA strand will be produced?

Options

A. 5' AGCCGCUUACG3'
B. 5' GCAUUCGCCCGA 3'
C. 5'CGUAAGCGGCU 3'
D. 5'UCGGCGAAUGC3'

Answer

To determine the RNA strand produced from the given DNA template strand, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the DNA Template Strand**:
The given DNA strand is 3' CGTAAGCGGCT 5'.

2. **Understand the Transcription Process**:
During transcription, RNA polymerase synthesizes RNA from the DNA template strand. The RNA strand is synthesized in the 5' to 3' direction.

3. **Complementary Base Pairing**:
In RNA, adenine (A) pairs with uracil (U) instead of thymine (T), while cytosine (C) pairs with guanine (G) and vice versa.

4. **Transcribe the DNA Template to RNA**:
- The DNA template strand is read from 3' to 5', and the RNA is synthesized from 5' to 3'.
- The complementary bases are paired as follows:
- C (from DNA) pairs with G (in RNA)
- G (from DNA) pairs with C (in RNA)
- T (from DNA) pairs with A (in RNA)
- A (from DNA) pairs with U (in RNA)
- A (from DNA) pairs with U (in RNA)
- G (from DNA) pairs with C (in RNA)
- C (from DNA) pairs with G (in RNA)
- G (from DNA) pairs with C (in RNA)
- G (from DNA) pairs with C (in RNA)
- C (from DNA) pairs with G (in RNA)
- T (from DNA) pairs with A (in RNA)

5. **Construct the RNA Strand**:
Following the above pairing, the RNA strand synthesized will be:
- 5' GCUUCGCCGA 3'

### Final Answer:
The RNA strand produced from the given DNA template strand 3' CGTAAGCGGCT 5' is **5' GCUUCGCCGA 3'**.