Item RH035003: A new skin cell of a cow contains the same number of DNA molecules as the existing skin cells.

A skin cell from a cow contains 60 DNA molecules. How many DNA molecules are found in new skin cells that develop as the cow grows?

  1. 30
  2. 60
  3. 90
  4. 120

Distribution of Responses

Chart showing distrubtion of responses for Item RH035003

Percent of students responding correctly

Grades 6–831%
Grades 9–1258%
Primary Language is English43%
Primary Language is not English31%

View data table