Answer all parts DNA is transcribed to messenger RNA (mRNA), and the mRNA is tra

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Answer all parts

DNA is transcribed to messenger RNA (mRNA), and the mRNA is translated to proteins by the ribosome. Three nucleotides in a row make a codon, which specifies a particular amino acid. A protein is encoded by two or more codons. The codon specifying methionine, AUG, is called the start codon because the first amino acid of any protein is always methionine. The last amino acid in a protein will be one of these three codons, called stop codons: UGA, UAG, or UAA. The table of codons shown here Figure 1 displays the start codon (methionine in blue and the three stop codons in red. All other codons (shown in black) appear in the middle of the amino acid sequences that make up proteins. The table also indicates which amino acid is specified by each codon First Third Second Letter Letter UAC Tyr UGU Cys UCU Phe UCC Ser UCA UAA STOP UGA STOP A UCG UAG STOP UGG Trp G CUU CCU CAU His CGU CUC Leu CCA Pro CAA Gin CGA Arg C CUA CGC CUG CCG CGG AUU Asn AGU Ser AUC Ile ACC Thr AAA A AUA. ACA. Lys Arg AUG Met/start ACG AAG AGG GCU GGU GCC GAC Asp GGC Ala GCA Glu GGA GCG GAG GUU GUC Val GUA Gly A GUG Table of Codons

Explanation / Answer

Amino acid sequence corresponding to the mRNA sequence,

Met-Ala-Ser-Cys

Classification of codon into different bins

start/methionine

AUG

Stop codon

UAG

UAA

UGA

Amino acid

AUC

GCA

ACU

CAC

UGC

AAA

The most common mutation causing CF is a CTT delection, amino acid deleted is,

Phenylalanine

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