Listed below are some amino acids and their corresponding mRNAcodons :Phenylalanine UUULysine AAGArginine CGAAlanine GCASelect the DNA sequence that would code for the following polypeptide sequence :Alanine Arginine Lysine Phenylalanine aCGT GCT TTC AAA bCGT GCT TTC TTT cCGU GCU UUC AAA dCGU GCU UUC TTT

The DNA sequence that would code for the polypeptide sequence Alanine Arginine Lysine Phenylalanine is bCGT GCT TTC TTT.

Here's the step by step process:

1. First, we need to understand that DNA is transcribed into mRNA, and mRNA is then translated into amino acids. The codons given in the question are mRNA codons.

2. The mRNA codon for Alanine is GCA. But in DNA, Adenine (A) is transcribed into Uracil (U) in mRNA. So, the DNA sequence for Alanine would be GCT.

3. The mRNA codon for Arginine is CGA. In DNA, Adenine (A) is transcribed into Uracil (U) in mRNA. So, the DNA sequence for Arginine would be CGT.

4. The mRNA codon for Lysine is AAG. In DNA, Adenine (A) is transcribed into Uracil (U) in mRNA. So, the DNA sequence for Lysine would be TTC.

5. The mRNA codon for Phenylalanine is UUU. In DNA, Uracil (U) is replaced by Thymine (T). So, the DNA sequence for Phenylalanine would be TTT.

So, the DNA sequence that would code for the polypeptide sequence Alanine Arginine Lysine Phenylalanine is CGT (for Arginine) GCT (for Alanine) TTC (for Lysine) TTT (for Phenylalanine). Therefore, the correct answer is bCGT GCT TTC TTT.