Morgan Has Albinism, a Recessive Condition Resulting in a Lack

question 717

Multiple Choice

Morgan has albinism, a recessive condition resulting in a lack of skin pigment. If neither of Morgan's parents have albinism, how did Morgan develop this condition?

• A)Morgan received a dominant gene for the condition from each parent.
• B)Morgan received a recessive gene for the condition from each parent.
• C)Morgan received two dominant genes for the condition from one of her parents.
• D)Morgan received two recessive genes for the condition from one of her parents.

Understand the basics of Crystal Ball and its functionalities.

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Definitions:

Iteroparous

Having repeated reproductive cycles throughout a lifetime. Compare with semelparous.

Density-Dependent Factor

An environmental factor whose effects on a population change as population density changes; tends to retard population growth as population density increases and enhance population growth as population density decreases. Compare with density-independent factor.

Negative Feedback

A regulatory mechanism in which a stimulus causes an opposite output in order to maintain an ideal level of whatever is being regulated.

Type-II Survivorship

A survivorship curve in which individuals are equally likely to die at any age, representing a relatively constant mortality rate throughout the organism's life.