Question

use the mrna codon table to answer the question.
mrna codon chart
a segment strand of dna has a base sequence of 3 tagcagtcc 5. which protein sequence should be formed?
isoleucine - valine - threonine
methionine - valine - tryptophan
isoleucine - valine - arginine
methionine - valine - serine

Explanation:

Step1: Transcribe DNA to mRNA

DNA: 3’ TAGCAGTCC 5’
mRNA: 5’ AUCGUCAGG 3’ (A pairs with U, T with A, G with C, C with G)

Step2: Split mRNA into codons

mRNA codons: AUC, GUC, AGG

Step3: Look up codons in mRNA codon chart

AUC codes for isoleucine, GUC codes for valine, AGG codes for arginine.

Answer:

isoleucine - valine - arginine