Traits Heredity Mendel

Which of the following is an example of a biological trait?

• personality

• hair style

• eye color

• regional accent

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Mendel began his experiments with purebred pea plants. This approach enabled him to determine that variations among offspring were the result of

• random mutations.

• self-pollination.

• genetic uniformity.

• his crossings

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When Mendel crossed plants that were purebred purple-flowered with plants that were purebred white-flowered, the resulting offspring all had purple flowers. When allowed to self-pollinate, this F generation gave rise to white-flowered plants as well as purple. As a result, Mendel determined that individual traits are

• inherited as discrete units.

• diluted in offspring

• merged with successive generations.

• lost in the pollination process.

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Mendel was able to identify predictable patterns of heredity. He succeeded mainly because he chose to study traits that

• were always dominant.

• tended to be recessive.

• could be diluted.

• had only two forms.

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Which of the following conclusions was a result of Mendel's observations?

• Organisms that give rise to purebreds are genetically superior.

• Organisms that have intermediate features are self-pollinating.

• Organisms inherit two copies of each gene, one from each parent.

• Organisms that self-pollinate do not have "either-or" features.

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