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WorksheetsMutations: The Potential Power of a Small Change
Total questions: 21
Worksheet time: 30mins
In the movie, Tim says that genetic mutations are permanent changes to DNA or RNA. What does this mean?
the changes are minor (small)
the changes will always be there
the changes are major (big)
the changes will NOT always be there
Which of the following traits is encoded in your DNA?
your personality
what you like and do not like
your intelligence
your eye color
What types of living organisms have no genetic material at all?
insects
bacteria
plants
all living organisms have genetic material
Why do most changes to DNA have no effect at all?
because they're too minor to have any effect
because RNA helps to fix the changes because RNA never changes
because the changes are quickly repaired
because the changes only occur in a few cells
Which word describes the majority of permanent genetic mutations?
helpful
minor
harmful
beneficial
What usually happens to a cell that has damaged DNA?
it has trouble making certain proteins
its genetic material leaves the nucleus
it is able to produce twice as many proteins as a normal cell
its size reduces to half its normal size (it shrinks)
How are cancerous cells different from normal cells?
cancerous cells are shaped differently than normal cells
cancerous cells divide more frequently than normal cells
cancerous cells contain chemicals not found in normal cells
cancerous cells need more oxygen than normal cells
Which of the following is an example of a beneficial mutation?
when an organism's lifespan become shorter
when an organism becomes unable to reproduce
when an organism's body becomes deformed (deformado)
when an organism develops immunity (inmunidad) to a disease
When a beneficial mutation spreads through an entire population of organisms, that population:
has not evolved
has evolved
goes extinct (extinto)
continues to mutate
When do random, or spontaneous, mutations happen?
during cell divsion
when cells are exposed to hazardous (dangerous) chemicals
when cells are exposed to certain viruses
when cells are exposed to radiation
What are the chemical blueprints (planes quimicos) for your entire body?
genetic mutations
DNA & RNA
physical traits
environment
Sickle cell anemia is a disease that is caused by a small mutation. What does this disease affect?
eyes
fingers
blood
legs
Cancer is a disease that is caused by a mutation. What does the mutation affect?
color of hair
cell growth
protein
Which of the following options causes evolution to create new species?
deleterious (bad) mutations
beneficial mutations
proteins in cells
mutations are not related to evolution
Evolution is the process that makes organisms ____________________ over many generations.
stay the exact same
have many different bad mutationns
change
When an organism has a mutation in its DNA, can its babies inherit the mutation, too?
yes
no
Which of the following can cause mutations?
chemicals
radiation
viruses
random problems in cell division
Which of the following sentences is true?
Organisms with beneficial mutations survive less and are less likely to pass on their mutated genes to their offspring.
Organisms with beneficial mutations survive better and are more likely to pass on their mutated genes to their offspring.
Organisms with deleterious mutations survive better and are more likely to pass on their mutated genes to their offspring.
A change in a sequence of DNA is called a
recombination
polygenic trait.
single-gene trait.
mutation
The two main sources of genetic variation are
genotypes and phenotypes.
crossing over in meiosis and mutations.
single-gene traits and polygenic traits.
directional selection and disruptive selection.
What causes new variation to exist within a species?
selective breeding
random mutations in DNA
inheritance of acquired characteristics
spontaneous generation
