Proteins called ____ bind DNA into a shape that is more like string wound around a ball.
A. enzymes
B. histones
C. esters
D. acetyl groups
Answer: B
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If deaf children cannot learn to speak, and no one teaches them sign language, what happens? a. Their working memory improves
b. Their working memory deteriorates. c. They make up their own sign language. d. They remain ready for language learning until someone gives an opportunity.
The tendency for people to place greater weight on the present over the future in decision-making is known as ____
a. the certainty effect b. temporal discounting c. reactance d. the now-or-never effect
Clarence has been under a great deal of stress at work. His wife told him that they should watch some sitcoms on TV. Her advice is sound because laughter can:
a. put a new perspective on a situation b. reduce blood pressure c. help distance you from a stressor d. laughter does all of these
Patient S.M., whose amygdalae were destroyed, a. is totally unable to assess the emotions of others accurately
b. can assess other people's emotions accurately when she is instructed to pay attention to their eyes. c. can assess negative emotions accurately, but has difficulty interpreting expressions of positive emotions, like joy. d. can assess other people's emotions by observing their body language, but is unable to interpret facial expression and tone of voice.