Moe and Jayme Are Twins

question 127

Multiple Choice

Moe and Jayme are twins.Even though Moe is a boy and Jayme is a girl, they look alike.On the basis of this information, what can you conclude about Moe and Jayme?

• A)They must be monozygotic twins.
• B)They could be either monozygotic or dizygotic twins.
• C)They must be dizygotic twins.
• D)They have the same genotype but are displaying different phenotypes.

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Definitions:

Method of Savings

A measure of retention in which the difference between the number of repetitions originally required to learn a list and the number of repetitions required to relearn the list after a certain amount of time has elapsed is calculated.

Ebbinghaus

A psychologist best known for his research on memory, particularly for discovering the forgetting curve and the spacing effect.

Anterograde Amnesia

Failure to remember events that occurred after physical trauma because of the effects of the trauma.

Retrograde Amnesia

A loss of memory-access to events that occurred, or information that was learned, before an injury or the onset of a disease.