Learning Pathways are interactive lessons that help you learn new concepts, explore important vocabulary, study examples, and check your understanding.
Each pathway guides you through the lesson one screen at a time. You will receive hints when you need help and explanations after answering questions.
Read short explanations, explore vocabulary, and connect each topic to science, history, and everyday life.
Complete examples and answer questions as you move through the pathway.
If an answer is incorrect, you will see the correct answer, an explanation, and a helpful hint.
Your score and responses are saved for your teacher when you complete the pathway.
Choose a pathway to begin. Your progress and final score will be saved when you finish.
Pathway collection
Pathway collection
Pathway collection
How characteristics pass from parents to offspring—and why genes are only part of the story.
Start pathway →How sections of DNA and their different versions contribute to inherited variation.
Start pathway →How allele interactions affect phenotype—and what “dominant” does not mean.
Start pathway →Reading and interpreting an organism’s allele combination.
Start pathway →How genes, development, and environment contribute to observable characteristics.
Start pathway →Classifying allele pairs and connecting them to inheritance predictions.
Start pathway →