When researchers studied the extra chromosome 21, which is a hallmark of Down syndrome, on which gene did they find mutations?
A. the APP gene
B. the APA gene
C. the PPA gene
D. the PAP gene
Answer: A
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Define the term "junk DNA" and explain why this term is no longer considered an appropriate term to describe some portions of the human genome that were studied as part of the Human Genome Project.
What will be an ideal response?
Which of the following is true of children specifically in the concrete operational stage of Piaget's cognitive development theory?
A) They begin to show an interest in how things are constructed. B) They show the capacity for adult logic that involves tangible objects. C) They are unable to focus on two dimensions of a problem at once. D) They focus primarily on abstract ideas.
To collect data for a correlational study, it is necessarythat
A) subjects fill out a questionnaire B) constructs must not be operationalized C) subjects be measured on two things D) some subjects receive a placebo
A resource to which all users have unrestricted access is called a
(a) social facilitation resource (b) competitive resource (c) cooperative resource (d) commons