질문
문제 이해
33. In a study at Princeton University in 1992, research
scientists looked at two different groups of mice. One group
was made intellectually superior by modifying the gene for
the glutamate receptor. Glutamate is a brain chemical that is
necessary in learning. The other group was genetically
manipulated to be intellectually inferior, also done by modifying
the gene for the glutamate receptor. The smart mice were
then raised in standard cages, while the inferior mice were
raised in large cages with toys and exercise wheels and with
lots of social interaction. At the end of the study, although the
intellectually inferior mice were genetically handicapped, they
were able to perform just as well as their genetic superiors.
This was a real triumph for nurture over nature. Genes are
turned on or off [3점]
① by them □□□□□
* glutamate: 글루타민산염 manipulate: 조작하다
풀이
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유사 문제와 풀이
4