Answered: Induced mutations

Name: Induced mutations A. are a random change in the DNA arising from error
Uploaded: 2024-03-20T06:42:55.000Z
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Description: Induced mutations A. are a random change in the DNA arising from errors in replicationsB. are a result of exposure to a mutagenC. always have a positive effect on the organismD. always have a negative effect on the organism

Science

Biology

Induced mutations

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter6: Dna Structure And Function

Section: Chapter Questions

Problem 13SQ

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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
Mutagens can cause mutations bya. chemically altering DNA nucleotides.b. disrupting DNA replication.c. altering the genetic code of an organism.d. all of the above.e. a and b only.
Rates of spontaneous mutation A vary from gene to gene. B vary from organism to organism C both a and b D none of the above
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
A. In practice, U.S. [ Select ] ["eugenics", "gene therapy", "recombinant DNA", "population genetics", "cloning", "reciprocal exchange"] laws were used to target behaviors such as alcoholism, “immorality”, or even repeated running away from home. B. For the most part, cancer is[ Select ]["a genetic", "an infectious", "very rare"] disease of [ Select ]["germ", "genetically engineered", "somatic"]cells that is caused by [ Select ]["mutations in multiple different genes", "a single gene mutation"]
_____ is a change in the order of one nucleotide in a section of a DNA molecule. a Point mutation b Spontaneous mutation c Somatic mutation d Germ mutation
Luria and Delbruck's experiemnt demonstatred that mutation of genetic materials is a random event in bacteria mutation of genetic materials is due to mutagens mutation of genetic materials is directed changed in bacteria dna is a genetic material in e coli cells
DNA Repair Systems a. counteract spontaneous and induced mutations b. counteract induced mutations only c. counteract amino acid changes introduced by mutations d. prevent DNA damage
In your own words, describe which type of mutation causes a greater change in the phenotype of an organism: insertions and deletions or point mutations.
Explain mechanism of action of these pesticides to cause mutations at DNA, metabolic level or cell cycle growth.
mutation are random change to the structure of gene. the likelihood of a mutation occuring can increase if a cell is . when mutations in a gene alter the sequence of amino acids, can be altered
. Usually, the deletion of a gene results in a recessive mutation. Explain how the deletion of an imprinted genecan be a dominant mutation