Table 22-2 Three Longtime Friends-Jack, Ryan, and Colin-Are Deciding How They Will

question 221

Multiple Choice

Table 22-2
Three longtime friends-Jack, Ryan, and Colin-are deciding how they will spend their Sunday afternoon. They all agree that they should do one of three things: go to a movie, go to the zoo, or go to a museum. They also agree that they will have two pairwise votes to determine how to spend their evening, with the majority determining the outcome on each vote. The first, second, and third choices for each person are as indicated in the table below.

-Refer to Table 22-2.If (1) the first vote pits "baseball game" against "movie," and (2) the second vote pits "zoo" against the winner of the first vote,then the outcome is as follows:

• A) "Baseball game" wins the first vote and "baseball game" wins the second vote, so they go to a baseball game.
• B) "Baseball game" wins the first vote and "zoo" wins the second vote, so they go to the zoo.
• C) "Movie" wins the first vote and "movie" wins the second vote, so they go to a movie.
• D) "Movie" wins the first vote and "zoo" wins the second vote, so they go to the zoo.

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Definitions:

Heritability

A measure of how much of the variation in a trait among individuals within a population can be attributed to genetic differences.

Dizygotic Impact

Refers to the effect or influence of being born as dizygotic twins, that is, twins developed from two different eggs fertilized by two different sperm.

Epigenetic Marks

Chemical modifications to DNA that do not change the DNA sequence but can affect gene activity and expression.

Personality Traits

Innate characteristics that influence an individual's patterns of thought, emotion, and behavior.