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

1 answer

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