Scores on the subject tests are reported as

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Unformatted text preview: res on the Subject Tests are reported as threedigit scaled scores with the third digit always zero. The maximum possible range for all Subject Test total scores is from 200 to 990. The actual range of scores for a particular Subject Test, however, may be smaller. For Subject Tests that report subscores, the maximum possible range is 20 to 99; however, the actual range of subscores for any test or test edition may be smaller than 20 to 99. Subject Test score interpretive information is provided in Interpreting Your GRE Scores, which you will receive with your GRE score report. This publication is also available at Content of the Biology Test The GRE Biology examination is designed to evaluate the following abilities and background of the student. Knowledge of basic vocabulary and facts in several biological fields at the equivalent of an upper-level course. Conceptual understanding of ideas, relationships, and processes Understanding of basic scientific research, procedures, and tools Capacity to read, evaluate, and draw conclusions from unfamiliar laboratory and field studies Understanding of the connections among biological fields and between biological fields and allied sciences The test contains about 200 five-choice questions, a number of which are grouped in sets toward the end of the test and are based on descriptions of laboratory and field situations, diagrams, or experimental results. To cover the broad field of the biological sciences, the subject matter on which the students are tested is organized into three major areas: cellular and molecular biology; organismal biology; and ecology and evolution. Approximately equal weight is given to each of these three areas. In addition to the total score, a subscore in each of these subareas is reported. 4 BIOLOGY TEST PRACTICE BOOK The approximate distribution of questions by content category is shown below. However, subject areas indicated by Arabic numerals may not contain equal numbers of questions. I. Cellular and Molecular Biology (33-34%) Fundamentals of cellular biology, genetics, and molecular biology are addressed. Major topics in cellular structure and function include metabolic pathways and their regulation, membrane dynamics and cell surfaces, organelles, cytoskeleton, and cell cycle. Major areas in genetics and molecular biology include chromatin and chromosomal structure, genomic organization and maintenance, and the regulation of gene expression. The cellular basis of immunity and the mechanisms of antigen-antibody interactions are included. Distinctions between prokaryotic and eukaryotic cells are considered where appropriate. Attention is also given to experimental methodology. A. Cellular Structure and Function (16-17%) 6. Cytoskeleton, motility, and shape Actin-based systems Microtubule-based systems Intermediate filaments Bacterial flagella and movement 7. Cell cycle, growth, division, and regulation (including signal transduction) 8. Methods Microscopy (e.g., electro...
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