Question
What would be the mRNA codons for the polypeptide Serine, Histidine, Threonine, Stop?
Answers
GPT-4o mini
To determine the mRNA codons for the specified polypeptide sequence (Serine, Histidine, Threonine, Stop), we first need to know the corresponding codons for each amino acid.
1. **Serine (Ser)**: The codons for serine are UCU, UCC, UCA, UCG, AGU, AGC. Typically, UCU (or UCC) is commonly used.
2. **Histidine (His)**: The codons for histidine are CAU and CAC. CAU is commonly used.
3. **Threonine (Thr)**: The codons for threonine are ACU, ACC, ACA, ACG. ACU is commonly used.
4. **Stop codon**: There are three stop codons in mRNA: UAA, UAG, and UGA. We can use UAA as an example.
Putting this together, one possible sequence of mRNA codons for your specified polypeptide is:
- Serine: **UCU**
- Histidine: **CAU**
- Threonine: **ACU**
- Stop: **UAA**
So the full sequence of mRNA codons would be: **UCU - CAU - ACU - UAA**.
1. **Serine (Ser)**: The codons for serine are UCU, UCC, UCA, UCG, AGU, AGC. Typically, UCU (or UCC) is commonly used.
2. **Histidine (His)**: The codons for histidine are CAU and CAC. CAU is commonly used.
3. **Threonine (Thr)**: The codons for threonine are ACU, ACC, ACA, ACG. ACU is commonly used.
4. **Stop codon**: There are three stop codons in mRNA: UAA, UAG, and UGA. We can use UAA as an example.
Putting this together, one possible sequence of mRNA codons for your specified polypeptide is:
- Serine: **UCU**
- Histidine: **CAU**
- Threonine: **ACU**
- Stop: **UAA**
So the full sequence of mRNA codons would be: **UCU - CAU - ACU - UAA**.