Item MO028002: A chemist could use a model to show other people what DNA looks like or to help him/herself think about DNA.

Why might a chemist decide to make a model of a DNA molecule?

  1. To show other people what DNA looks like, and to help herself think about DNA
  2. To show other people what DNA looks like, but not to help herself think about DNA
  3. To help herself think about DNA, but not to show other people what DNA looks like
  4. Neither to show other people what DNA looks like nor to help herself think about DNA

Distribution of Responses

Chart showing distrubtion of responses for Item MO028002

Percent of students responding correctly

Overall76%
Grades 6–875%
Grades 9–1279%
Male71%
Female82%
Primary Language is English78%
Primary Language is not English68%

View data table