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?

As you have posted multi-part question.I am answering only first 3. For remaining answers post them…

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)

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,...

See similar textbooks

Similar questions

During planetary exploration a new life form is discovered which has a DNA genome containing 6 different bases rather than the familiar four. The life form contains proteins with 25 different amino acids. Codons on Earth comprise three nucleotides; assuming a non-overlapping genetic code that includes initiation and termination codons, how many nucleotides would you predict to constitute a codon in the new life form, assuming all codons to be the same length? Briefly explain your answer
What will be the order of amino acids derived from the following DNA sequence 5’-TGATCGCACAAT-3’? Explain briefly. (1.5) If the base G (denoted by an asterisk) in the sequence 5’-TGATCG*CACAAT-3’ is replaced by C due to a mutation, the new sequence will be 5’-TGATCCCACAAT-3’ what will be the new amino acid sequence? Explain briefly. (1.5) If the anticodon sequence of a tRNA is 5’-GCG-3’, what amino acid will it carry? Explain briefly. (1.5) What would be the effect of mutation if the C is changed to A in the anticodon? Explain briefly. (1.5)
This question has 2 parts, please explain both
The complementarity of its two strands is the underlying reason that DNA can be faithfully copied. Propose alternative chemical structures that could be faithfully copied.
Amino acids have an average molar mass of 100 g/mol.How many bases on a single strand of DNA are needed to codefor a protein with a molar mass of 5x10^5g/mol?
Are the following base sequences sticky or not sticky? Each piece is written 5′ to 3′.(a) TTAGC and GCTAA(b) CGTACG and CCTTCG
Suppose that a nearly perfect 20- basepair inverted repeat is observed in a DNA sequence. Provide two possible explanations.
a. There are three nucleotides in each codon, and eachof these nucleotides can have one of four different bases. How many possible unique codons are there?b. If DNA had only two types of bases instead offour, how long would codons need to be to specify all20 amino acids?
Compute the PERCENT IDENTITY for the following pairwise sequence alignment. ACTGATGGGGG--AGACGTA ||||| ... I ||||||| ACTG--AAAAGCTAGACGTA