The Outcome of a Genetic Cross Involving Eye Color and Body

question 64

Multiple Choice

The outcome of a genetic cross involving eye color and body type is predicted to have a 25%: 25%: 25%: 25% ratio. When bred, the organisms produced offspring with the following ratio 45%: 45%: 3%: 3%. These results are most likely due to

• A) the two genes in question being linked on the same chromosome.
• B) a spontaneous mutation within the offspring.
• C) pure chance.
• D) an inaccurate prediction for the 25%: 25%: 25%: 25% ratio.
• E) the two genes being on separate chromosomes.

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Definitions:

Bipolar Disorder

A psychological disorder characterized by severe fluctuations in mood, including periods of intense happiness (mania or hypomania) and deep sadness (depression).

Adjunctive Therapy

A treatment used in conjunction with the primary treatment to assist in achieving the desired outcome.

Mood Stabilizer

A psychiatric medication used to treat mood disorders that helps balance mood swings.

SSRI

Short for Selective Serotonin Reuptake Inhibitors, a class of drugs commonly used to treat depression by increasing serotonin levels in the brain.