Which of the following is NOT true about mutations? A. Mutations can be harmful but not beneficial to the cell B. Nucleotide substitution in DNA can cause nonsense mutations C. Nucleotide substitution in DNA can cause missense mutations D. Mutagens increase the rate of mutation, but mutations are still random E. Nucleotide insertion or deletion in DNA can cause frameshift mutations

Which of the following is NOT true about mutations? A. Mutations can be harmful but not beneficial to the cell B. Nucleotide substitution in DNA can cause nonsense mutations C. Nucleotide substitution in DNA can cause missense mutations D. Mutagens increase the rate of mutation, but mutations are still random E. Nucleotide insertion or deletion in DNA can cause frameshift mutations

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Description: Which of the following is NOT true about mutations? A. Mutations can be harmful but not beneficial to the cell B. Nucleotide substitution in DNA can cause nonsense mutationsC. Nucleotide substitution in DNA can cause missense mutationsD. Mutagens inc

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter11: Genome Alterations: Mutation And Epigenetics

Section: Chapter Questions

Problem 6QP: Although it is well known that X-rays cause mutations, they are routinely used to diagnose medical...

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Which of the following types of mutations will have the most devastating effect on a cell?A.frameshift mutationB. missense mutationC. nonsense mutationD. silent mutation
Induced mutations A. are a random change in the DNA arising from errors in replications B. are a result of exposure to a mutagen C. always have a positive effect on the organism D. always have a negative effect on the organism
Which of the following terms refer to the case when a mutation results in a significant decrease or a complete loss of the functional activity of a gene product? a. gain-of-function mutation b. loss-of-function mutation
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 mutation
Which of the following rows identifies the mutated DNA sequence, complementary mRNA sequence, and resulting amino acid in a person with metabolic syndrome? Complementary mRNA Resulting Amino Acid Row A B D. OC. C D. D C Select one: OA A OB B Mutated DNA ATG ATG ACT ACT Metabolic syndrome is a genetic disorder with symptoms such as hypertension, elevated blood cholesterol, and low blood magnesium concentrations. This syndrome is caused by a mutation in which a cytosine nucleotide in the codon ACG is replaced by a thymine nucleotide. Use the following to answer the next AUG UAC ACU UGA Methionine Tyrosine Threonine Stop
A point mutation is a mutation that arises when one nucleotide in the genetic sequence is substituted, added or deleted. Two possible point mutations are given below: Mutation A. Lysine is substituted for Leucine Mutation B: Serine is substituted for Threonine Which mutation is likely to be more serious? E Explain
In general, all mutations can be considered harmful, because most genetic systems are already optimized to work correctly and efficiently. A. True b. False; mutations are considered harmful only if they have a direct effect on the ability of cells to synthesize DNA c. False; some mutations are harmful, and some are considered beneficial
Mutations can arise in the absence of a mutagen. please explain your answer true false
Although it is well known that X-rays cause mutations, they are routinely used to diagnose medical problems, including potential tumors, broken bones, and dental cavities. Why is this done? What precautions need to be taken?
Which statement(s) below regarding DNA mutations is true: A. Mutations only occur in genes B. Mutations always result in phenotypic alterations C. Mutations are only induced by extrinsic (environmental) factors D. Mutations can occur in promoters E. Point mutations can be caused by transposons or “jumping genes”
Which type of point mutation does not affect the resulting protein? a deletion b missense mutation c silent mutation d nonsense mutation
Match the concept in column A to the concept in column B. Write the letter of the correct answer on the blank provided. A В a. Change that affects the ability of DNA to be transcribed to 1 Karry Mullis RNA without directly modifying the DNA sequence. b. transformation epigenetic modification 18-25 nucleotides C. can be transformed d. genetic engineering e. primers f. biotechnology g. regulated repressor h. Nucleotide 3 4 recombination Frederick Griffith forward primer competent cells Karoly Ereke 6 7 8 sequences are exchanged between two identical DNA molecules i. Repressible negative regulation j. Complementary to the 3' end of the recombinant DNA 10 tryp operon anti-sense strand k. Complementary to the 3' end of sense strands I. Polymerase chain reaction