In Russian schools, the typical grading scale for biology tests is: : 90–100% correct. "4" (Good) : 75–89% correct. "3" (Satisfactory) : 50–74% correct. "2" (Unsatisfactory) : Less than 50% correct. Resources for Practice
: The stages of mitosis and its biological significance. Sample Test Structure kontrolnaia rabota po teme kletochnyi uroven dlia 9 klassa
: Open-ended questions requiring a detailed explanation of a process, such as the significance of mitosis or the role of enzymes. Grading Criteria In Russian schools, the typical grading scale for
Nucleic acids: Structural differences between DNA and RNA (e.g., uracil vs. thymine). : In Russian schools