Item RH002003: Four different types of nucleotides are used to make DNA molecules, not one, two, or twenty.

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 RH002003
Students Responding Correctly
Group Correct Total Percent
Overall 727 1610 45%
Grades
  6–8 370 923 40%
  9–12 357 687 52%
Gender
  Male35081343%
  Female36877448%
Primary Language
  English653143346%
  Other5012839%

View data table