Two Characters That Appear in a 9:3:3:1 Ratio in the F₂

question 74

Multiple Choice

Two characters that appear in a 9:3:3:1 ratio in the F₂ generation should have which of the following properties?

• A)Each of the traits is controlled by single genes.
• B)The genes controlling the characters obey the law of independent assortment.
• C)Each of the genes controlling the characters has two alleles.
• D)Four genes are involved.
• E)Sixteen different phenotypes are possible.

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Definitions:

120 V

A reference to a standard voltage level used in homes and businesses in many parts of the North and Central America for powering electrical devices and lighting.

Resistor

A device used to introduce some amount of resistance into an electric circuit.

Resistance

The opposition to the flow of electric current, resulting in electrical energy being transformed into heat or another form of energy.

Parallel Circuit

A circuit configuration where two or more paths for current flow are connected alongside each other.