In Animals, the Inability to Make the Pigment Melanin Results

question 61

Multiple Choice

In animals, the inability to make the pigment melanin results in albinism, a recessive condition. Two unaffected parents, who have decided to have three children, have a first child that has albinism (genotype aa) . What is the probability that the second and third children will also have albinism?

• A) 1/4
• B) 1/2
• C) 1/16
• D) 9/16
• E) 1 (100%)

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Definitions:

Frequencies

The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light).

Neurons

Cells within the nervous system that transmit information to other nerve cells, muscles, or gland cells.

Timbre

The distinctive quality of a sound that distinguishes it from other sounds of the same pitch and volume.

Loudness

A subjective measure of the strength or intensity of a sound perceived by a listener.