Science
GED Science Practice Test 8
Forty new multiple-choice questions, none repeated from earlier tests. This set leans on how traits pass from parents to offspring and change over generations, what happens inside cells, and how atoms, forces and heat behave. It also covers tides, fossils, plate boundaries and how to write and judge a hypothesis. The tips below are about using your results once you finish.
Question 1 of 40
0 answered
In tomatoes, the allele for red fruit (R) is dominant over the allele for yellow fruit (r). A grower crosses a plant with genotype Rr and a plant with genotype rr. What percent of the offspring are expected to have yellow fruit?
Sort your misses by type
After you score the test, do not just count wrong answers. Put each miss into one of three groups: I did not know the science idea, I misread the passage or table, or I knew it but fell for a tempting choice. Each group needs a different fix, so this sorting tells you what to do next.
For idea gaps, reread that section of the study guide and then redo the question. For misreading, slow down on the last line and the numbers in the table. For tempting choices, read the explanation for why your pick was wrong, since the same kind of trap tends to show up again on the real test.
Inheritance and change over time
Many questions in this set ask how a trait is passed on or how it spreads. For a single gene, draw a quick Punnett square and count the boxes, even when the cross looks easy. Then check whether the question asks for a genotype, a trait you can see, or a percent.
For evolution, look for three things in the passage: variation that already exists, a trait that helps survival or reproduction, and offspring that inherit it. A choice that says an animal changed during its life and passed that change on describes an acquired trait, and it is almost always the trap.
Frequently asked questions
- How should I use my Practice Test 8 score?
- Use it to choose what to study, not to judge yourself. Look at which topic and which type of mistake caused most of your misses, spend your next sessions there, and then retake only the questions you missed.
- Are acquired traits ever passed to offspring on the GED?
- No. Changes such as bigger muscles from training or a scar from an injury are not passed on. Only traits carried in the genes of egg and sperm cells are inherited.
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