QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
A single nucleotide deletion during DNA replication:
A. causes one amino acid of the protein to be incorrect
B. causes all of the amino acids of the protein to be incorrect
C. causes the amino acids encoded by nucleotides after the deletion to be incorrect
D. causes the amino acids encoded by nucleotides before the deletion to be incorrect
E. has no effect on the resulting protein
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Answer
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Step 1: Understand the scenario described in the question.
A single nucleotide deletion during DNA replication can cause a shift in the reading frame, leading to incorrect translation of amino acids.
Step 2: Recall the concept of how DNA is transcribed into mRNA and then translated into proteins.
A change in the DNA sequence can lead to a different mRNA sequence, which in turn can result in a different protein sequence.
Final Answer
1. Causes one amino acid of the protein to be incorrect (Option A) 2. Causes the amino acids encoded by nucleotides after the deletion to be incorrect (Option C)
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