The Leaf Color of a Certain Plant Is Controlled by One

question 27

Multiple Choice

The leaf color of a certain plant is controlled by one gene.For that gene,the allele G = orange and g = green.You have a plant with orange leaves,but do not know whether that plant's genotype is GG or Gg.Which of the following would help you determine the plant's genotype?

• A) Cross the plant to another plant with orange leaves.
• B) Cross the plant to a plant with green leaves.
• C) Cross two true-breeding,orange-leaved plants to each other and then cross one of their offspring to the plant with the unknown genotype.
• D) Change the environment in which the plant grows to find the conditions that cause the leaves to produce the orange color.

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Definitions:

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that modulates sleep patterns.

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The progression through various stages of sleep, including REM (rapid eye movement) and non-REM stages, typically recurring several times throughout a typical sleep period.

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A temporary condition resulting from air travel across time zones, characterized by fatigue, insomnia, and other symptoms due to disruption of the body's internal clock.

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A geographic region in which the same standard time is used.