1. Level 4: The Mastery Science Test
GED® Science: Full-Length Practice Exam (Level 4 - Mastery) · preview lesson
This is the mastery GED® Science practice exam -- harder than Levels 1-3. The format is unchanged:
- 34 questions in 90 minutes, across Life, Physical, and Earth & Space Science; scored 100-200, 145 to pass.
What makes Level 4 the hardest yet: every question is a hard, layered item. You will run calculations, trace energy conservation through a system, predict inheritance ratios, follow evolution mechanisms, and judge whether an experiment's data actually supports its conclusion.
In a monohybrid cross of two Bb parents, what is the expected ratio of dominant to recessive phenotypes?
Bb x Bb gives a 3:1 dominant-to-recessive ratio.
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