Mechanisms of Genetics

The passing of traits from parent to offspring is called _____.

• heredity

• genetics

• DNA Replication

• photosynthesis

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The branch of biology that focuses on heredity is called _______.

• genetics

• traits

• translation

• protein synthesis

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Which organism did Gregor Mendel use to perform his genetic experiments on?

• guinea pigs

• babies

• pea plants

• horses

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Pea plants are perfect for genetic studies because they grow quickly, produce many offspring, and their traits exist in ____ different forms.

• 2

• 4

• 20

• 1

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When Mendel crossed a purebred purple-flowered pea plant with a purebred white-flowered pea plant, he noticed that all the pea plants of the first generation had only ______ flowers.

• light blue

• purple

• purple and white striped

• white

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Mendel determined that we have ____ copies of each gene (one from each parent).

• 1

• 2

• 23

• 46

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The alternative versions of genes are called _______.

• genies

• alleles

• traits

• alt-genes

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Humans have 3 main allele variations for eye color. Brown, green, and _____.

• violet

• amber

• blue

• black

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When 2 different alleles are found together, the one that is fully expressed (shows up) in the individual, is ________.

• dominant

• recessive

• hybrid

• stronger

When 2 different alleles are found together, the allele that has no effect (is hidden) is called ______.

• dominant

• recessive

• non-existant

• ghost-trait