When Crossing an Organism That Is Homozygous Recessive for a Single

question 22

Multiple Choice

When crossing an organism that is homozygous recessive for a single trait with one that is heterozygous for the same trait,what is the chance of producing an offspring with the homozygous recessive phenotype?

• A)0%
• B)25%
• C)50%
• D)75%

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Definitions:

Neurons

Specialized cells in the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Chemical Structure

The arrangement of atoms in a chemical substance and the chemical bonds that hold those atoms together, determining the substance's properties.

Sensory Adaptation

The process by which the sensitivity to a stimulus declines if the stimulus is presented for an extended period of time.

Stimulus

Any event or situation that evokes a response from an organism.