Question

which amino acid sequence can be coded from the dna sequence cag tag cga?
valine - isoleucine - glycine
valine - phenylalanine - alanine
valine - aspartic acid - alanine
valine - isoleucine - alanine

Explanation:

Step1: Transcribe DNA to mRNA

DNA: CAG TAG CGA
mRNA: GUC AUC GCU

Step2: Use codon table

• GUC codes for Valine
• AUC codes for Isoleucine
• GCU codes for Alanine

Answer:

Valine - Isoleucine - Alanine