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GRE Biology

GRE Biology is a long test. The total number of questions is 200. All questions are MCQ with five choices. many questions are group questions normally at the end of the test. These questions are based on descriptions of laboratory and field situations, diagrams or experimental results.
The whole test is categorized into three major areas:

  • Cellular and Molecular Biology
  • Organismal Biology and Ecology
  • Evolution

Almost equal number of questions are based on each of the areas.

Sub Score

Your score report reflects four scores, three sub scores one for each major area and total score.

Sample Questions

Practice questions play an important role in your preparation. You can download standard practice question from here for the familiarity of the test questions.

Download Sample Questions

Major Topics

The approximate distribution of questions by content category is shown below.

Topics and Percentage of Questions

  • CELLULAR AND MOLECULAR BIOLOGY: 33–34%
  • Cellular Structure and Function: 16–17%
  • Genetics and Molecular Biology: 16–17%
  • ORGANISMAL BIOLOGY: 33–34%
  • Animal Structure, Function and Organization: 10%
  • Animal Reproduction and Development: 6%
  • Plant Structure, Function and Organization, with Emphasis on Flowering Plants: 7%
  • Plant Reproduction, Growth and Development, with Emphasis on Flowering Plants: 5%
  • Diversity of Life: 6%
  • ECOLOGY AND EVOLUTION: 33–34%
  • Ecology: 16–17%
  • Evolution: 16–17%
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