The diagram below shows an mRNA molecule that encodes a protein with 202 amino acids. The start and stop codons are highlighted, and a portion of the nucleotide sequence in the early part of the molecule is shown in detail. At position 35, a single base-pair substitution in the DNA has changed that would have been a uracil (U) in the mRNA to an adenine (A).
Based on the genetic code chart below, which of the following would be the result of this single base-pair substitution?
A. a silent mutation (no change in the amino acid sequence of the protein)
B. a frameshift mutation causing extensive change in the amino acid sequence of the protein
C. a missense mutation causing a single amino acid change in the protein
D. a frameshift mutation causing a single amino acid change in the protein
E. a nonsense mutation resulting in early termination of translation
.awasam-promo3 {
background-color: #F5F9FF;
color: #000000;
text-align: center;
padding: 20px;
border-radius: 10px;
}
.button {
background-color: #4CAF50;
border: none;
color: white;
padding: 10px 20px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
border-radius: 5px;
}
.button-whatsapp {
background-color: #41D07D;
border: none;
color: white;
padding: 10px 20px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
border-radius: 5px;
}
.awasam-alert {
color: red;
}
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