Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 15, Problem 7TYK
Summary Introduction
Introduction:
Missense mutation occurs when a sense codon for an amino acid is changed to a different sense codon for a different amino acid.
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What type of mutation causes the "mutant" variety of the PTC gene?
a
A point mutation which lead to a nonsense mutation
b
A addition mutation which lead to a frameshift
c
A substitution mutation which lead to a missense mutation
d
A deletion mutation which lead to a SNP mutation
The word mutation is generally considered to be negative. However, is there a positive side to mutations? Briefly explain your answer.
A science student claims that a substitution mutation is less likely to affect gene function than an insertion or deletion mutation. Use logical reasoning to evaluate this claim.
Chapter 15 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 15.1 - Prob. 1SBCh. 15.1 - If the codon were five bases long, how many...Ch. 15.2 - For the DNA template below, what would be the...Ch. 15.2 - Prob. 2SBCh. 15.3 - Prob. 1SBCh. 15.3 - Prob. 2SBCh. 15.4 - Prob. 1SBCh. 15.4 - Distinguish between the P, A, and E sites of the...Ch. 15.4 - Prob. 3SBCh. 15.5 - How does a missense mutation differ from a silent...
Ch. 15.5 - Prob. 2SBCh. 15.5 - Prob. 3SBCh. 15.5 - Prob. 4SBCh. 15 - Eukaryotic mRNA: usessnRNPs to cut out introns and...Ch. 15 - A segment of a strand of DNA has a base sequence...Ch. 15 - Prob. 3TYKCh. 15 - Prob. 4TYKCh. 15 - Which of the following statements is false? a. GTP...Ch. 15 - Prob. 6TYKCh. 15 - Prob. 7TYKCh. 15 - Prob. 8TYKCh. 15 - Prob. 9TYKCh. 15 - A part of an mRNA molecule with the sequence 5-UGC...Ch. 15 - Discuss Concepts A mutation occurs that alters an...Ch. 15 - Discuss Concepts The normal form of a gene...Ch. 15 - Prob. 13TYKCh. 15 - Prob. 14TYKCh. 15 - Prob. 15TYKCh. 15 - Prob. 16TYKCh. 15 - Prob. 17TYKCh. 15 - Prob. 1ITD
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- Which of the following results in the same amino acid in its protein sequence? a. missense mutation b. sense mutation c. nonsense mutation d. antisense mutationarrow_forwardDescribe the mechanistic steps through which gene therapy might be used to cure a disease that is caused by mutations in "Gene D". A potential patient is reluctant to undergo this treatment, because they remember hearing about adverse incidents from gene therapy studies conducted decades ago. What relevant details might you tell them, in order to inform them on this topic?.arrow_forwardWhich type of point mutation does not affect the resulting protein? a deletion b missense mutation c silent mutation d nonsense mutationarrow_forward
- Which of the following mutations would be most likely to havea harmful effect on an organism?(A) a deletion of three nucleotides near the middle of a gene(B) a single nucleotide deletion in the middle of an intron(C) a single nucleotide deletion near the end of the codingsequence(D) a single nucleotide insertion downstream of, and close to,the start of the coding sequencearrow_forwardWhich of the following is an example of a somatic mutation? a. A mutation in an embryonic muscle cell b. A mutation in a sperm cell c. A mutation in an adult nerve cell The somatic cells are all cells of the body excluding the d. Both a and c are examples of somatic mutations.arrow_forwardWhich type of mutation would expect would have no effect on a protein coding gene in eukaryotes? a.a single base substitution that creates a splice site mutation b.a single base substitution that creates a synonymous mutation c.a single base deletion that creates a frameshift near the 3' end of the open reading frame d.a single base substitution that creates a non-conservative missense mutation e.a single base substitution that creates a conservative missense mutationarrow_forward
- Give two DIFFERENT examples of how the following can occur:a. A point mutation in an exon that is silent.b. A point mutation in an exon that is NOT silent.c. A point mutation in an intron that is NOT silent.d. A point mutation in a promoter that is NOT silent.arrow_forwarda. The reading frame DNA sequence is b. The mRNA sequence is c. The polypeptide sequence is a.The mutated polypeptide sequence is b.What kind of mutation was produced?arrow_forwarda molecular geneticist hopes to find a gene in human liver cells that codes for an important blood-clotting protein. he knows that the nucleotide sequence of a small part of the gene is gtggactgaca. briefly explain how to obtain the desired gene answerarrow_forward
- A SNV mutation that results in no change in the amino acid sequence is called: A. silent mutation B. silencing mutation C. missense mutation D. nonsense mutation E. frameshift mutationarrow_forwardWhich among the following statements is not true about mutations? * a.) It may either occur at the chromosomes or at the sequence of nucleic acids. b.) It is caused either by mutagens or through hereditary genes. c.) All mutations cause diseases and disorders in the developing organism. d.) All mutations causes a change in the structure or sequence of the genetic material.arrow_forwardDistinguish between a point mutation and a frameshiftmutation.arrow_forward
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