Genetics: Mutations and Variation Quiz

What is a mutation?

• A change in the DNA sequence of a gene.

• A type of animal.

• A type of food.

• A type of weather.

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What does the term "variation" mean in genetics?

• Differences in traits between individuals of the same species.

• A type of plant.

• A kind of weather pattern.

• A type of rock.

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What is an allele?

• Different versions of the same gene.

• A type of cell.

• A kind of animal.

• A type of food.

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How can mutations cause variation among individuals?

• By creating new versions of genes that influence traits.

• By making everyone look the same.

• By stopping all changes in DNA.

• By removing all genes from DNA.

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If a variation gives an advantage, what can happen to it?

• It can be passed on to the next generation through natural selection.

• It disappears immediately.

• It turns into a different species.

• It causes the organism to stop growing.

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What is a change in the genetic material of an organism called?

• Mutation

• Adaptation

• Evolution

• Selection

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Which of the following can be a mutagen?

• Radiation

• Water

• Oxygen

• Sugar

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What can happen if mutations occur in sex cells?

• Offspring may have new characteristics

• The organism will always die

• The organism will become stronger

• The organism will not be affected

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Which of the following is a harmful effect of mutation in plants?

• Inability to make chlorophyll

• Faster growth

• Increased fruit production

• Resistance to disease

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How can mutations sometimes be beneficial?

• By preventing viruses or parasites to thrive in host organisms

• By causing cancer

• By making plants unable to produce chlorophyll

• By causing albinism in humans

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