Two parents with curly hair (a dominant trait) are wondering how likely it will be that their first child would have curly hair. A geneticist determines that they are both heterozygous for curly hair (meaning they have one dominant and one recessive allele each). She tells them the probability of their first child having curly hair is about
a. 100%.
b. 75%.
c. 50%.
d. 25%.
Answer: c. 50%.
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Twenty-eight-year-old Theodore has an irrational fear of dogs. His therapist hypnotizes him and asks him to mentally relieve his earliest childhood experience with a dog. The therapist is making use of
A) hypnagogic sensations. B) age regression. C) REM rebound. D) temporal dissociation. E) the hidden observer.
When she reached puberty, Dora became incredibly withdrawn and distant from her parents, but recently she has been reaching out to confide in her mother. According to the research, Dora's behavior is:
a) normal for both daughters and sons during the mid- to later teens. b) normal for daughters during the mid- to later teens, but not for sons. c) abnormal during the younger teenage years. d) abnormal throughout the teenage years.