Item RH002002: Four different types of nucleotides are used to make DNA molecules, not one, two, or twenty.

DNA molecules are made up of subunits called nucleotides that are linked together.  How many different types of nucleotides are used to make DNA molecules?

  1. One type
  2. Two types
  3. Four types
  4. Twenty types
Distribution of Responses
Chart showing distrubtion of responses for Item RH002002
Students Responding Correctly
Group Correct Total Percent
Overall 648 1432 45%
Grades
  6–8 369 973 38%
  9–12 279 459 61%
Gender
  Male28167742%
  Female35673149%
Primary Language
  English570123946%
  Other6715543%

View data table