Answer:
6 amino acids
Explanation:
The question gives a mRNA sequence as follows: CGA-UAC-AGU-AGC-UUG-AAC. A mRNA is a molecule formed by transcription of DNA and it's sequence is read in a group of three nucleotides called CODONS. Each codon specifies a particular amino acid.
From the mRNA sequence provided, there are 18 nucleotides that forms a total of 6 codons i.e. 18/3. Since one codon is for one amino acid, this means that there would be 6 amino acids encoded in this sequence.