Question

complete the mRNA sequence that will be formed with the DNA sequence below, then identify the amino acids.
TAC CGC CCC
mRNA: ___ ___ ___
amino acid: ___ ___ ___
gly, His, UTG, AUG, AGA, UUU, CCC, GUU, GCG, GGG, AGU, Arg, Leu, Ala, GGU, Met, Ser

Answer 1

To complete the mRNA sequence based on the provided DNA sequence "TAC CGC CCC", we need to transcribe the DNA to mRNA.

The rules for transcription are:
- Adenine (A) in DNA pairs with Uracil (U) in RNA.
- Thymine (T) in DNA pairs with Adenine (A) in RNA.
- Cytosine (C) in DNA pairs with Guanine (G) in RNA.
- Guanine (G) in DNA pairs with Cytosine (C) in RNA.

Now, we will transcribe the given DNA sequence:

1. **TAC** → AUG
2. **CGC** → GCG
3. **CCC** → GGG

So the complete mRNA sequence is: **AUG GCG GGG**

Now we will identify the amino acids corresponding to the mRNA codons:

- **AUG** codes for Methionine (Met)
- **GCG** codes for Alanine (Ala)
- **GGG** codes for Glycine (Gly)

Putting it all together:

**mRNA: AUG GCG GGG**

**Amino acid: Met Ala Gly**

So the final answer is:
- mRNA: **AUG GCG GGG**
- Amino acid: **Met Ala Gly**