Genetic Variation

What is the process by which genetic information is passed from parents to offspring?

• Heredity

• Evolution

• Mutation

• Natural Selection

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What is the role of mutations in evolution?

• Mutations have no effect on evolution.

• Mutations introduce new genetic variations, which can lead to evolutionary changes.

• Mutations only occur in response to environmental changes.

• Mutations are always harmful to a species.

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What is any change in the sequence of DNA referred to as?

• Mutation

• Transcription

• Replication

• Translation

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What is the difference between dominant and recessive alleles?

• Dominant alleles require two copies to express their traits, while recessive alleles express their traits with one copy.

• Dominant alleles express their traits even when only one copy is present, while recessive alleles require two copies to express their traits.

• Dominant alleles are always more common in a population than recessive alleles.

• Recessive alleles can express their traits with one copy, while dominant alleles require two copies.

What is the term for a change in allele frequency in a population over time?

• Genetics

• Evolution

• Mutation

• Natural Selection

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What is the significance of genetic variation in a population?

• It allows for faster reproduction rates.

• It is crucial for a population's ability to adapt to changing environments and resist diseases.

• It decreases the chances of mutation.

• It ensures that all individuals in a population are genetically identical.

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What do we call a group of organisms with similar characteristics that can interbreed to produce offspring?

• Genus

• Species

• Family

• Order

What is a form of an inherited characteristic, such as the shape of a chicken’s comb?

• Trait

• Feature

• Characteristic

• Attribute

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What is the observable physical or biochemical characteristics of an organism?

• Genotype

• Phenotype

• Allele

• Chromosome

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What is the process called when humans breed animals or plants with desired traits?

• Selective Breeding

• Natural Selection

• Genetic Modification

• Hybridization