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Quiz yourself with questions and answers for AP Bio | 2020 Practice Exam 2 MCQ, so you can be ready for test day. Explore quizzes and practice tests created by teachers and students or create one from your course material.
When researchers test the catalysis of the normal enzyme and the mutated enzyme, they find that the mutated enzyme has much lower activity than the normal enzyme does. Which of the following most likely explains how the amino acid substitution has resulted in decreased catalytic activist by the mutated enzyme?
We have links to all of the best online AP Biology practice exams. These resources will provide thousands of challenging practice questions to work through. Choose from the listing below to get started with your test prep right now! Hundreds of multiple choice questions, all organized by topic.
Download free-response questions from past AP Biology exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
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Here is a database of MCQs and FRQs, organized by chapter. You'll need to sign up to access it: https://www.excelatscience.com/practice-portal. For all the College Board released FRQs organized by topic (highly recommend doing these to prep for the exam), you can refer to this:
Which of the following observations would provide the strongest evidence that two plants belong to different biological species? Responses A) There are variations in their RNA sequences.
