A Gene on the Y Chromosome Causes a Rare Disease

question 17

Multiple Choice

A gene on the Y chromosome causes a rare disease.A woman married to a man with the disease has three children.The first two are daughters without the disease.The third is a son.What is the probability that he will have the gene?

• A)0%
• B)25%
• C)50%
• D)75%
• E)100%

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Definitions:

Quasi-Experiment

A study that aims to evaluate cause and effect relationships, without the use of random assignment.

Independent Variable

An experimental variable that is manipulated by the researcher to investigate its impact on the dependent variable.

Prosocial Behavior

Actions intended to benefit others, including helping, sharing, donating, co-operating, and volunteerism.

Prosocial Video Games

Video games designed with the intent to positively influence the social behavior and attitudes of the players.