Genetics Quiz

Who used snapdragon plants in his monastery garden to study the inheritance of characteristics.

• Charles Darwin
• Louis Pasteur
• Isaac Newton
• Gregor Mendel

What trait is hidden if the genotype has a dominant allele?

• Incomplete dominant trait
• Codominant trait
• Dominant trait
• Recessive trait

Offspring of purebred parents will result in what percentage of offspring with recessive traits?

• 25%
• 50%
• 100%
• 0%

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What determines an organism’s phenotype?

• The organism's diet alone.
• The interaction of genotype and environment.
• The color of the organism's habitat.
• The species of the organism.

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Do all characters follow Mendel’s principles of heredity?

• Yes

• No

Does human blood type follow Mendel’s principles of heredity?

• NO

• Yes

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Circle True if the statement is true, otherwise circle False. Skin color, height, and intelligence are controlled by a single gene.

• True

• False

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Is it considered natural selection when an existing trait makes an organism more likely to survive and reproduce?

• Yes

• No

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When has natural selection been observed to create new kinds of organisms?

• Natural selection has been observed in instances like the evolution of Darwin's finches and antibiotic resistance in bacteria.
• Natural selection creates organisms instantly without gradual changes.
• Natural selection only occurs in plants, not animals.
• Natural selection has never been observed to create a new kind of organism.

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If a yellow-flowered plant is crossed with a red-flowered plant that follows incomplete dominance, what type of offspring will they produces?

• Purple-flowered plants
• Orange-flowered plants
• Red-flowered plants
• Yellow-flowered plants