Item RH002001: Four different types of nucleotides are used to make DNA molecules, not one, two, or three.

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. Three types
  4. Four types

Distribution of Responses

Chart showing distrubtion of responses for Item RH002001

Percent of students responding correctly

Overall33%
Grades 6–828%
Grades 9–1241%
Male33%
Female34%
Primary Language is English33%
Primary Language is not English30%

View data table