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We are given a random DNA sequence (each of the 4 bases has equal probability of occurring at each position in the sequence). A. What is the probability that three adjacent bases (a triplet) encode a stop codon? B. What is the probability that a given triplet is not a stop codon? C. What is the probability that neither of two adjacent triplets is a stop codon?

We are given a random DNA sequence (each of the 4 bases has equal probability of occurring at each position in the sequence). A. What is the probability that three adjacent bases (a triplet) encode a stop codon? B. What is the probability that a given triplet is not a stop codon? C. What is the probability that neither of two adjacent triplets is a stop codon?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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We are given a random DNA sequence (each of the 4 bases has equal probability of occurring at each position in the sequence). A. What is the probability that three adjacent bases (a triplet) encode a stop codon? B. What is the probability that a given triplet is not a stop codon? C. What is the probability that neither of two adjacent triplets is a stop codon? D. What is the probability that none of 100 adjacent triplets are stop codons? E. Consider a single base insertion mutation between the 3rd and 4th codons in a natural gene that encodes a protein 100 amino acids long. Is it more likely that the protein produced by this mutant allele will be shorter or longer than 100 amino acids long?
Transcribed Image Text:We are given a random DNA sequence (each of the 4 bases has equal probability of occurring at each position in the sequence). A. What is the probability that three adjacent bases (a triplet) encode a stop codon? B. What is the probability that a given triplet is not a stop codon? C. What is the probability that neither of two adjacent triplets is a stop codon? D. What is the probability that none of 100 adjacent triplets are stop codons? E. Consider a single base insertion mutation between the 3rd and 4th codons in a natural gene that encodes a protein 100 amino acids long. Is it more likely that the protein produced by this mutant allele will be shorter or longer than 100 amino acids long?
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