Answered: A mutagen is an agent that increases…

A mutagen is an agent that increases the possibility of a mutation and a carcinogen is an environmental agent that can cause cancer, True False

Nutrition Now

8th Edition

ISBN:9781337415408

Author:Brown

Publisher:Brown

Chapter26: Nutrient–gene Interactions In Health And Disease

Section: Chapter Questions

Problem 1RQ

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Cancer Therapy

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A mutagen is an agent that increases the possibility of a mutation and a carcinogen is an environmental agent that
can cause cancer,
○ True
False

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A ______________ mutation results from exposure to toxic chemicals (mutagens). One word.
Fill the Table with mutagenic agents and provide their type (physical, chemical, biological) and their classification based on their effect (teratogenic, carcinogenic, clastogenic, or non-specific), together with their modes of action. Mutagen Type of Mutagen Classification based on effect Action Heat 5-bromouracil Ethidium bromide
Fill the Table with mutagenic agents and provide their type (physical, chemical, biological) and their classification based on their effect (teratogenic, carcinogenic, clastogenic, or non-specific), together with their modes of action. Mutagen Type of Mutagen Classification based on effect Action 2-aminopurine Acridine orange Proflavine
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.
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
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.
Fill the Table with mutagenic agents and provide their type (physical, chemical, biological) and their classification based on their effect (teratogenic, carcinogenic, clastogenic, or non-specific), together with their modes of action. Mutagen Type of Mutagen Classification based on effect Action Cobalt Nickel Methylhydrazine Temozolomide Ethyl ethane sulfate
_____ 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
The main aim of human genome project isa) To identify and sequence of all the genes present in the human bodyb) To introduce new genes to human beingsc) To remove disease causing genes from humansc) To improve techniques of finger printing
The Ames testa. provides a way to determine if any type of cell has experienced amutation.b. provides a way to determine if an agent is a mutagen.c. allows researchers to experimentally disrupt gene activity by causinga mutation in a specific gene.d. provides a way to repair mutations in bacterial cells.e. does all of the above.
The mutagen that most often causes thymine dimers is/are ________. Group of answer choices ultraviolet light reactive oxidants (free radicals) 5-bromouracil ethylmethane sulfonate acetaldehyde
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