A man with one gene for red-green color deficiency will show the condition, but a woman shows the condition only if she has two genes for it. The reason is that the color deficiency gene is which of the following?
a. Recessive and sex-linked
b. Dominant and sex-linked
c. Recessive and sex-limited
d. Dominant and sex-limited
a
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One particular feature of the environment that is associated with earlier development of a theory of mind is __________.
A. participation in a lot of pretend play B. having a younger sibling C. having parents who punish the child for lying D. having a pet animal
James reads a magazine ad about a drug that doctors say may help college students perform better on multiple-choice type tests. Being the inquisitive person that he is, James decides to do an experiment to see if the magazine's claims are true. He administers the drug to one of his classes, and gives the other class a placebo. James then tests the students in both groups on material they have
recently discussed in class. In this example, the experimental group is the ____.? a. ?students who received the drug b. ?students who received the placebo c. ?test performance of the students d. ?age of the students
The degree to which preschool children achieve the ability to regulate their own behaviors has been linked to all of the following EXCEPT
a. improved literacy skills. c. improved geography skills. b. improved vocabulary skills. d. improved mathematical skills.
Which of the following represents the strongest correlation?
a) .34 b) –.45 c) –.28 d) .00