Question

practice 3
use the mrna codon chart on the previous page to find the amino acids that correspond to each portion of mrna given below. each answer should be two amino acids.

1. mrna sequence:

auuaaa
amino acid sequence:

1. mrna sequence:

gcuccc
amino acid sequence:

1. mrna sequence:

acuucg
amino acid sequence:

1. mrna sequence:

cauagg
amino acid sequence:

1. mrna sequence:

uaugaa
amino acid sequence:

Explanation:

Step1: Split mRNA into codons

Group mRNA into 3-base codons, stop at 2 amino acids (2 codons)

1. $AUU, AAA$
2. $GCU, CCC$
3. $ACU, UCG$
4. $CAU, AGG$
5. $UAU, GAA$

Step2: Match codons to amino acids

Use standard mRNA codon table to translate each codon

1. $AUU$ = Isoleucine, $AAA$ = Lysine
2. $GCU$ = Alanine, $CCC$ = Proline
3. $ACU$ = Threonine, $UCG$ = Serine
4. $CAU$ = Histidine, $AGG$ = Arginine
5. $UAU$ = Tyrosine, $GAA$ = Glutamic Acid

Answer:

1. Isoleucine, Lysine
2. Alanine, Proline
3. Threonine, Serine
4. Histidine, Arginine
5. Tyrosine, Glutamic Acid