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Item RH028001: There are 20 different types of amino acids that are used to make protein molecules, not one, three, or four.

How many different types of amino acids are used to make protein molecules?

  1. One
  2. Three
  3. Four
  4. Twenty
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 3081
6–8
n = 1885
9–12
n = 1196
Male
n = 1444
Female
n = 1573
English
n = 2660
Other
n = 339
A. 12% 12% 11% 12% 11% 12% 14%
B. 32% 35% 27% 32% 32% 32% 33%
C. 39% 37% 43% 38% 41% 39% 39%
D. 17% 16% 18% 18% 16% 17% 14%