Master Genetics concepts with free TEAS practice questions and detailed rationales. Use these questions to reinforce your understanding and improve your score on the TEAS exam.
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Free Genetics practice questions for the TEAS exam with detailed rationales.
Question 4 of 13
In a study of a rare autosomal dominant disorder, a researcher examines a family where one parent is affected (genotype Aa) and the other is unaffected (aa). Their first child does not have the disorder. What is the probability that their second child will have the disorder, considering Mendel’s principles?
25%, due to the Law of Independent Assortment
50%, due to the Law of Segregation
75%, due to the Law of Dominance
100%, due to the Law of Segregation
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