Biology Biology Practice Problems Solutions Library

Mutation Solutions Library

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59 solutions

Mutation

Q. Since the two strands of the DNA molecule are complementary, for any given gene:A. The RNA polymerase can bind to either strand.B. Only one strand ...

Solved • Oct 20, 2018

Mutation

Q. The mRNA sequence belowcodes for part of a protein. The reading frame for the translation of this mRNA starts with the first three nucleotides as s...

Solved • Oct 6, 2018

Mutation

Q. Which of the following mutations, resulting in an error in the mRNA shortly after the start codon is likely to have the most serious effects on the...

Solved • Oct 4, 2018

Mutation

Q. A single base substitution is LEAST likely to be deleterious (dangerous) when the change results in _____.A. the replacement of a codon specifying ...

Solved • Oct 4, 2018

Mutation

Q. The sequence below is for a wild type gene whose mutation leads to a condition of defective iron transport called hemochromatosis. In hemochromatos...

Solved • Oct 2, 2018

Mutation

Q. Mutations due to small insertions and deletions can arise spontaneously during DNA replication because:A. a purine in the template DNA strand mispa...

Solved • Oct 2, 2018

Mutation

Q. _____ radiation excites atoms to a higher energy state within molecules such as DNA, which leads to the formation of pyrimidine dimers.A. ParticleB...

Solved • Sep 27, 2018

Mutation

Q. Which of the following is the best example of a missense mutation?A. Ala-Gln-Cys-Asp-Leu → Ala-GlnB. Ala-Gln-Cys-Asp-Leu → Ala-Gln-Cys-His-LeuC. Al...

Solved • Sep 23, 2018

Mutation

Q. If a G position becomes depurinated, during the next DNA replication, that position will probably be filled with _____, if the damage is not repair...

Solved • Sep 15, 2018

Mutation

Q. Deamination of 5-methylcytosine _____.A. converts that base to a uracilB. converts that base to a thymineC. happens mostly in RNAD. is an epigeneti...

Solved • Sep 15, 2018

Mutation

Q. When a chromosome has either a duplication or a deletion, the chance that the mutation will be harmful are a function of:A. its location, if it occ...

Solved • Sep 9, 2018

Mutation

Q. Mutations that inactivate metabolic pathways are called _____ mutations.A. morphologicalB. biochemicalC. lethalD. conditional

Solved • Aug 31, 2018

Mutation

Q. UV radiation is a useful tool in producing mutants of microbial culturesA. TrueB. False

Solved • Aug 21, 2018

Mutation

Q. Which type of mutation usually has the largest effect on protein structure? Explain why.A.  missenseB.  silentC. frameshift

Solved • Aug 18, 2018

Mutation

Q. A random mutation event has lead to the deletion of a nucleotide within the translated region of a particular gene. How would the resulting protein...

Solved • Aug 13, 2018

Mutation

Q. For the given sequence 5' - GGAGCUCGUUGUAUU - 3'A. Is this sequence RNA or DNA? How can you tell?B. Which amino acids are encoded, if the reading f...

Solved • Aug 13, 2018

Mutation

Q. Predict the potential effect of a particular point mutation on the structure and function of a protein.

Solved • Aug 6, 2018

Mutation

Q. Explain why a point mutation in a gene may or may not cause a change in the primary sequence of a protein.

Solved • Aug 3, 2018

Mutation

Q. Name the three types of base substitution mutations and list the consequence of each type?

Solved • Aug 3, 2018

Mutation

Q. Which of the following statements are true about mutations at the 7q11.23?A. Some individuals with autism have extra copies of this genetic region....

Solved • Aug 1, 2018

Mutation

Q. What is a missense mutation?A. a mutation whose effect is not yet known.B. a mutation that changes a codon that specifies an amino acid to one that...

Solved • Jul 25, 2018

Mutation

Q. A ______ mutation is one that leads to premature insertion of a stop codon within an ORF.

Solved • Jul 13, 2018

Mutation

Q. In the strand below, a mutation occurs at the 8th nucleotide. The nucleotide is deleted. Transcribe then translate the strand to see what happens t...

Solved • Jul 12, 2018

Mutation

Q. Describe how a mutation can lead to large scale changers in the structure of an organism.

Solved • Jul 12, 2018

Mutation

Q. What type of mutation would be caused if three bases were deleted from the original DNA strand? Would this cause an amino acid to be lost?

Solved • Jul 12, 2018

Mutation

Q. What type of mutation would be caused if two bases are deleted from the original DNA strand? What would happen to the protein?

Solved • Jul 12, 2018

Mutation

Q. Define the following:  a. Proband b. Penetrance c. Non-sense mutationd. Trisomy e. Homologous chromosomes 

Solved • Jul 12, 2018

Mutation

Q. UV light damages DNA. What bases in the DNA specifically does it damage? What chemical changes that occur, or how does the physical structure of th...

Solved • Jul 11, 2018

Mutation

Q. Below is the active site of chymotrypsin. Which mutation would have a greater effect on protein function: replacing Asp102 with glutamine or glutam...

Solved • Jul 2, 2018

Mutation

Q. Would a random mutation in a coding region of the genome or a random mutation that occurs during transcription/mRNA processing be worse for the cel...

Solved • Jun 28, 2018

Mutation

Q. Given the DNA sequences below of coding strands, identify and underline the mutation in each. What effect did each DNA mutation have on the final p...

Solved • Jun 28, 2018

Mutation

Q. Why are point mutations in the third nucleotide of a codon less likely to cause the production of a non-functional protein? Is this also true for f...

Solved • Jun 22, 2018

Mutation

Q. Base substitution mutations and frame-shift mutations: If a segment of DNA were replicated without any errors, the replicated strand would have the...

Solved • Jun 12, 2018

Mutation

Q. Which of the following could NOT introduce a premature stop codon in mRNA?a. insertion of an incorrect nucleotide by RNA polymerase during transcri...

Solved • Jun 12, 2018

Mutation

Q. A protein-coding gene is diagrammed below, with 4 exons (blue boxes) and 3 introns. A researcher has isolated four different mutant alleles of this...

Solved • Jun 8, 2018

Mutation

Q. How might a mutation cause a change in protein function? Are there any instances when a mutation can result in no change to an organism? 

Solved • Jun 8, 2018

Mutation

Q. What would occur if a mutation caused an aminoacyl-tRNA synthetase to recognize both its normal amino acid and a different one?a. Translation would...

Solved • Jun 6, 2018

Mutation

Q. Label the four mutated DNA segments shown below according to the type of point mutation each represents. Use the codon table above to determine how...

Solved • Jun 6, 2018

Mutation

Q. Which of the following mutations would be most likely to have a harmful effect on an organism?a. a deletion of three nucleotides near the middle of...

Solved • Jun 6, 2018

Mutation

Q. Both nonsense mutations and frameshift mutations can cause mutant proteins to be shorter than normal. Explain how the same general type of effect o...

Solved • May 28, 2018

Mutation

Q. How do splice-site mutations differ from nonsense mutations?

Solved • May 24, 2018

Mutation

Q. Compare the consequences of germline mutations to somatic mutations.

Solved • May 24, 2018

Mutation

Q. Describe four types of point mutations:transitions, transversions, deletions, and additions.

Solved • May 18, 2018

Mutation

Q. Explain how errors in DNA replication can cause mutations.

Solved • May 18, 2018

Mutation

Q. Explain why deletion of a single nucleotide in a gene generally results in more severe defects in the polypeptide than a point mutation that change...

Solved • May 9, 2018

Mutation

Q. List four genes whose mutations are associated with cancer. For each gene briefly describe: 1) Their normal functions, including the related signal...

Solved • May 9, 2018

Mutation

Q. Define "mutation" and describe its potential consequences.

Solved • May 7, 2018

Mutation

Q. A somatic mutation is a mutation that occurs in cells that give rise to gametes.  a. True b. False

Solved • Jul 31, 2017

Mutation

Q. Translocation during meiosis is not a cause of mutation.  a. True b. False

Solved • Jul 31, 2017

Mutation

Q. Which mutation in DNA would lead to the change of a single amino acid in a protein?  a. A nonsense mutation b. A one base deletion c. A one base...

Solved • Jul 31, 2017

Mutation

Q. What type of mutation has occurred in the following? Normal allele 5' – GGAAUGAAACAGGAACCC – 3' Mutant allele 5' – GGAAUGAAAUCAGGAACCC – 3'  a. In...

Solved • Jul 31, 2017

Mutation

Q. What type of mutation has occurred in the following? Normal allele 5' – GGAAUGAAACAGGAACCC – 3' Mutant allele 5' – GGAAUGAAACAGGUACCC – 3'  a. Sub...

Solved • Jul 31, 2017

Mutation

Q. Using the genetic code shown here, predict what type of mutation has occurred in the hemoglobin sickle cell anemia allele.Normal allele 5' – GGAAUG...

Solved • Jul 31, 2017

Mutation

Q. In a "frameshift" mutation:  a. The codon that mutates causes a change in the amino acid specified b. The codon that mutates causes a stop codon ...

Solved • Jul 31, 2017

Mutation

Q. In a "silent" mutation:  a. The codon that mutates causes a change in the amino acid specified b. The codon that mutates does not cause a change ...

Solved • Jul 31, 2017

Mutation

Q. In a "missense" mutation:  a. The codon that mutates does not cause a change in the amino acid specified b. The codon that mutates causes a chang...

Solved • Jul 31, 2017

Mutation

Q. In a "nonsense" mutation:  a. The codon that mutates does not cause a change in the amino acid specified b. The codon that mutates causes a chang...

Solved • Jul 31, 2017

Mutation

Q. Mutations may be caused by:  a. Errors in replication b. Exposure to radiation c. Exposure to chemicals d. Breakage of chromosomes e. All are ...

Solved • Jul 31, 2017

Mutation

Q. Which point mutation would be most likely to have a catastrophic effect on the functioning of a protein? a. a base substitution b. a base deletio...

Solved • Jul 26, 2017