Given a hypothetical segment of functional DNA strand 3'-GGC AAC CTT GGC 5', the corresponding polypeptide segment could be:-

Options

A. `H_(2)N-`gly-ala-leu-pro-COOH
B. HOOC-asp-val-ile-gly-`NH_(2)`
C. `H_(2)N`-pro-leu-glu-pro-COOH
D. `H_(2)N`-met-thr-phe-cys-COOH

Answer

To solve the question regarding the hypothetical DNA segment 3'-GGC AAC CTT GGC 5', we will follow these steps:

### Step-by-Step Solution:

1. **Identify the DNA Sequence**:
The given DNA sequence is 3'-GGC AAC CTT GGC 5'.

2. **Transcribe DNA to RNA**:
The transcription process involves creating a complementary RNA strand from the DNA template. Since the DNA strand is given in the 3' to 5' direction, we will transcribe it to RNA in the 5' to 3' direction.
- G (from DNA) pairs with C (in RNA)
- A pairs with U (in RNA)
- C pairs with G
- T pairs with A (but here we have CTT, so C pairs with G)

Thus, the RNA sequence will be:
- 5'-CCG UUG GAA CCG-3'

3. **Divide RNA into Codons**:
Codons are sequences of three nucleotides. We will break the RNA sequence into codons:
- CCG | UUG | GAA | CCG

4. **Translate Codons to Amino Acids**:
Each codon corresponds to a specific amino acid. Using the genetic code:
- CCG codes for Proline (Pro)
- UUG codes for Leucine (Leu)
- GAA codes for Glutamic Acid (Glu)
- CCG codes for Proline (Pro) again

5. **Construct the Polypeptide Sequence**:
The resulting polypeptide sequence from the codons is:
- Proline - Leucine - Glutamic Acid - Proline

### Final Answer:
The corresponding polypeptide segment is: **Proline - Leucine - Glutamic Acid - Proline**.