DNA Mutations Answers
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1
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Which statement is scientifically based?
A
Mutations rarely occur.B
All mutations are harmful.C
Some mutations can be contagious, like infections.D
Mutations are not passed from parent to offspring.2
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Which is a point mutation and not a frameshift mutation?
A
mutagenB
insertionC
deletionD
silent3
Which best describes somatic mutations?
A
They are usually passed on to offspring.B
They can cause different kinds of cancer.C
They always result from point mutations.D
They only occur in reproductive cells.4
Based on scientific research, which statement best describes mutations?
A
Mutations are rare occurrences.B
Mutations are always harmful.C
Mutations cannot be inherited.D
Mutations cannot be acquired.5
Ji wants to write an example of a frameshift mutation using the following sentence: THE CAT SAW THE RAT. Which sentence best shows a frameshift mutation?
A
THC ATS AWT HER AT.B
CAT THE SAW RAT THE.C
EHT TAC WAS EHT TAR.D
THE THE CAT SAW THE RAT.6
Which type of mutation occurs only in reproductive cells?
A
somatic mutationB
germline mutationC
point mutationD
frameshift mutation7
A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the laboratory. Which statement best provides evidence that the substance is a mutagen?
A
The cells die within hours of being exposed to the chemical.B
The cells grow more quickly than those that were not exposed to the chemical.C
The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.D
The cells continue to divide at the same rate as before they were exposed to the chemical.
9
A mutagen is
A
a living thing that has undergone a mutation.B
an agent that causes a mutation in DNA.C
a mutation that has affected one gene.D
any chemical that can poison living cells.10
Which best describes genetic mutations?
A
Some inherited genetic mutations can be good for the offspring.B
Different genetic mutations cause few forms of cancer.C
Somatic mutations can be inherited from parents or acquired during life.D
Genetic mutations that cause diseases are always passed on to offspring.Did you find these answers helpful?
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