Two people with curly hair (a dominant trait) are wondering how likely it is that their first child will 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 __________ percent.
A. 100
B. 75
C. 50
D. 25
Answer: B
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Gabriel, age 16, parents have left him mostly on his own for several years. They leave for days on end to drink and gamble, leaving no food or assistance for him in the home. When they do come around, they often beat Gabriel and criticize him because the house is unkempt. Gabriel takes to the streets, vandalizing cars and getting involved in arson. Gabriel would be categorized as a(n) __________.
A. unprovoked delinquent B. disordered psychopath C. undersocialized delinquent D. oppositional offender
Why do children dislike certain foods?
a. Because they like to make a scene b. Because they are allergic to them c. Because their taste buds are overly sensitive d. Because they are unfamiliar with them
Which of the following illustrates continuous reinforcement?
a. You become less thirsty every time you drink a glass of water. b. You go to the movies even though you only enjoy about 25% of the films you see. c. You buy a weekly lottery ticket. d. None of these.
What do studies of human anterograde amnesia reveal about the biological basis of long
term memory? Ground your answer in research described in your textbook. What will be an ideal response?