Ap bio practice mcq questions

Practice is key, especially for a subject as dense as AP Bio. Check out the AP Bio Practice Portal, which is our popular vault of 300+ AP-style MCQ and FRQ problem sets with answers and explanations for every question. Don't waste any more time Googling practice problems or answers - try it out now!

AP Biology - Evolution Unit Practice Exam. Multiple Choice. Identify the choice that best completes the statement or answers the question. ____ 1) Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvier's attempt to explain the existence of. A) evolution.This document provides notes on an AP Biology practice exam, including: 1) An overview of 8 multiple choice questions addressing topics like biological macromolecules, DNA structure, chromosomal inheritance, and cellular respiration. 2) For each question, the learning objectives, topics, answers and rationales are presented. 3) The questions assess skills like describing biological concepts ...E) Enzymes make the rate of a reaction independent of substrate concentrations. B) Enzymes increase the rate of a reaction by lowering the activation energy barrier. The active site of an enzyme is the region that. A) binds allosteric regulators of the enzyme. B) is involved in the catalytic reaction of the enzyme.Unlike other AP exams, AP Biology weighs the multiple choice section at a full 50% of your total score, plus it requires you to answer more essay questions than other STEM exams.This combination can be difficult for students because it means you not only have to spend a lot of time memorizing information, but you also have to be able to think critically, logically, and creatively.C. The joining of small molecules into macromolecules. D. The origin of self-replicating molecules that eventually made inheritance possible. Question 7. In zebras, the striped pattern is determined by a series of genes that …The yellow-bellied toad ( Bombina variegata) and the fire-bellied toad ( B. bombina) have overlapping geographic ranges, but hybrids between the two species have high rates of embryonic mortality. The rice species Oryza sativa and O. glaberrima can be crossed to produce F1 hybrid plants, but these hybrid plants produce empty pollen grains that ...Meiosis has two rounds of division and doubles the number of chromosomes in the second round of division, producing four diploid cells. D. Mitosis produces two identical diploid daughter cells after one round of division. Meiosis produces four haploid daughter cells after two rounds of division. ️Answer/Explanation.Practice multiple choice questions are on canvas, IT IS A GRADE. The content that will be on the midterm is listed in the document below. ... ap_biology_midterm_frq_practice.pdf: File Size: 282 kb: File Type: pdf: Download File. Practice Grid-In problems (optional but HIGHLY recommended)

20 free AP biology practice tests. Over 200 AP biology practice questions to help you with your AP biology exam prep.AP Bio Unit 4 MC - CollegeBoard. 1. Multiple Choice. An antigen can induce an immune response in a host organism. Antigens are targeted by antibodies that are produced by the organism's immune system in response to contact with the antigen. Antibodies are specific to antigens. Many different cell types are involved in immune responses.Antiphospholipid syndrome (APS) is an autoimmune disorder that involves frequent blood clots (thromboses). When you have this condition, your body's immune system makes abnormal pr...AP Biology DNA Practice Test. 1. Multiple Choice. How do the leading, and the lagging strands differ? The leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction. The leading strand is synthesized at twice the rate of the lagging strand. The ...AP Biology Chapter 16 Quiz and Recall QUESTIONS. 72 terms. Yussuf_Shakir. Preview. AP Bio - Campbell Chapter 17 Multiple Choice (Test Bank) 31 terms. hsr777. Preview. English.Questions 1 and 2 are long free-response questions that require about 22 minutes each to answer and are worth 10 points each. Questions 3–8 are short free-response questions that require about 6 minutes each to answer. Questions 3–5 are worth 4 points each and questions 6–8 are worth 3 points each. Read each question carefully and completely.This AP Psychology practice test covers the biological bases of behavior. You should be familiar with physiological techniques, functions of the nervous system, neural transmission, neuroanatomy, neuroplasticity, the endocrine system, genetics, and evolutionary psychology. Our free practice quiz is a great place to start your test prep. As Jill ... A. Yeast and mammals share a recent common ancestor. B. Early versions of cell communication mechanisms still used today must have evolved before the first multicellular organisms. C. Signaling molecules first evolved in multicellular eukaryotes. D. All cell communication systems are used for sexual reproduction. Question 2.

Section I is the multiple-choice portion of the exam. Mark all of your responses beginning on page 2 of your answer sheet, one response per question. If you need to erase, do so carefully and completely. Your score on the multiple-choice section will be based solely on the number of questions answered correctly. Chapter 6 Test - AP Biology Approved & Edited by ProProfs Editorial Team The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over …Types of immune responses: Innate and adaptive, humoral vs. cell-mediated. B lymphocytes (B cells) Professional antigen presenting cells (APC) and MHC II complexes. Helper T cells. Cytotoxic T cells. Review of B cells, CD4+ T cells and CD8+ T cells. Clonal selection. Self vs. non-self immunity. How white blood cells move around.May 7, 2022 ... Join us for a live review of AP Biology with Tiffany Jones from AP Bio Penguins TEST DAY CHECKLIST: ...

Castle in birth chart.

Practice Test 2011. Another 179 questions from Mrs. Bell. Working through as many questions as possible is the best test prep you can do. This even includes one essay question at the end. | | | | | |. The largest collection of online AP Human Geography practice exams. Full-length tests with AP Geography multiple choice and free response questions.Question 17. In a typical human cell, only about 20% of the genes it contains are expressed (even less in muscle and nerve cells), even though almost all the cells in the organism contain the same DNA. The set of genes expressed in each cell is unique, which allows the cells to perform different functions.Figure 1. A model of epinephrine signaling. Two types of cells, alpha and beta cells, produce signaling molecules that affect blood sugar levels in opposite ways (Figure 1). Epinephrine is a chemical, often released during periods of exercise, that ultimately causes an increase in blood sugar levels in the body.Check out our AP Bio Practice Portal, which is an easy-to-use database of 300+ AP-style MCQ and FRQ practice questions. Students love the Practice Portal because it includes answers and explanations for every problem, tracks progress, and saves time from Googling practice problems.

A. May aid in the transport of materials from one side of the membrane to the other. B. Membrane proteins of adjacent cells may hook together in various kinds of junctions. C. May be an enzyme or series of enzymes involved in metabolic pathways. D. May be a membrane carbohydrate used for cell-to-cell recognition.This will help you solve HOT's. When it comes to solving multiple-choice questions in biology, here are some precautions to take: 1. Read question carefully look for important scientific words and also word "not" exception" that give you clues about the correct answer. 2.Directions: Questions 1 and 2 are long free-response questions that require about 25 minutes each to answer. Questions 3 through 6 are short free-response questions that require about 10 minutes each to answer. Read each question carefully and completely. Answers must be written out in paragraph form.A course redesign is coming summer 2024 to match the new AP® Psychology Course and Exam Description for the 2024-2025 school year. Be on the lookout for updates! Standards. Tags. Albert's AP® Psychology practice questions will help you review everything from the history of psychology to the inner workings of the mind.Study guides & practice questions for 7 key topics in AP Bio Unit 4 – Cell ... Score Higher on AP Biology 2024: MCQ Tips from Students. 7 min read. Score Higher on AP Biology 2024: Tips for FRQ 1 - Interpreting and Evaluation Experimental Results. 6 min read. Score Higher on AP Biology 2024: Tips for FRQ 2 – Interpreting and Evaluating ...Study guides & practice questions for 11 key topics in AP Bio Unit 2 – Cell Structure & Function ... Practice Questions. ... Score Higher on AP Biology 2024: MCQ Tips from Students. 7 min read. Score Higher on AP Biology 2024: Tips for FRQ 1 - Interpreting and Evaluation Experimental Results ...Meiosis has two rounds of division and doubles the number of chromosomes in the second round of division, producing four diploid cells. D. Mitosis produces two identical diploid daughter cells after one round of division. Meiosis produces four haploid daughter cells after two rounds of division. ️Answer/Explanation.Notes on 2020 Exam Sample Question 2. 2020 Question 2 is modified from Free Response Question 4 in the Course and Exam Description, Conceptual Analysis. 2020 Question 2 is a 6-point question that presents students with an authentic scenario describing a biological phenomenon with a disruption. This question assesses students’ ability to do ...

41 of 41. Quiz yourself with questions and answers for AP Biology MCQ Practice Exam #1, 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.

This document provides notes on an AP Biology practice exam, including: 1) An overview of 8 multiple choice questions addressing topics like biological macromolecules, DNA structure, chromosomal inheritance, and cellular respiration. 2) For each question, the learning objectives, topics, answers and rationales are presented. 3) The questions assess skills like describing biological concepts ...Question 8. When an adult vervet monkey sees an eagle, it gives a specific alarm call (a short-double-syllabled cough). They are able to distinguish among eagle species and only sound the alarm for the two species that eat vervets. Infant vervet monkeys, however, give very undiscriminating alarm calls.Are humans separate from chimps and other apes? Learn what separates us from chimps. Advertisement Human beings see themselves in everything. We establish emotional connections to ...500+ Exam-Like Questions. Realistic questions mimic the style and difficulty of the AP Biology exam. Organized in the same way as the AP Biology course, so you learn as you go, all year long. Prepares you to excel on quizzes, unit tests, and the AP exam.THE PRINCETON REVIEW GETS RESULTS. Get extra preparation for an excellent AP Biology score with 550 extra practice questions and answers. This eBook edition has been formatted for on-screen viewing with cross-linked questions, answers, and explanations. Practice makes perfect—and The Princeton Review's 550 AP Biology Practice Questions gives you everything you need to work your way to the top.gracekang718. AP Biology Unit 5: Heredity Topics - Meiosis, Meiosis and Genetic Diversity, Mendelian Genetics, Non-Mendelian Genetics, Environmental Effects on Phenotype, Chromosomal Inheritance Directions - For each question, choose the best answer (unless otherwise stated) Test Period - You have 22 minutes 30 seconds to answer 30 questions.Genes A,B,C, and D are located on the same chromosome. Testcrosses show that the recombination frequency between A and B is 36% and between A and C is 23%. The recombination frequency between C and D is 5% and between A and D is 18%. What is the correct sequence of the genes on the chromosome? The number of active copies of a gene is important ...

Weather in shingletown ca.

Crown of tempests.

AP® Biology; AP® Chemistry; ... Our practice questions were created by former AP teachers and experts to match your AP courses and mimic the exams. ... The exams consist of both multiple-choice and free-response questions, and they last between two and three hours. The exam is scored on a scale of 1 to 5 with a score of 3 considered as passing.200+ AP® Biology practice questions; Unit 7 teaches about natural selection, artificial selection, population genetics, evidence of evolution and common ancestry. Try 20 free AP® Biology multiple choice practice questions on Topic 7.5 Hardy-Weinberg Equilibrium; Unit 8: Ecology. 10-15% of the exam; 140+ AP® Biology practice questionsAll of the following statements about the pyramid of biomass are correct EXCEPT. (A) Biomass is the total dry mass of the organisms present. (B) The base of the pyramid generally represents primary consumers. (C) The amount of biomass at a particular level of the pyramid depends on the amount of. energy available.Questions 3–8 are short free-response questions that require about 6 minutes each to answer. Questions 3–5 are worth 4 points each and questions 6–8 are worth 3 points each. Read each question carefully and completely. You are advised to spend the 10-minute reading period planning your answers. You may begin writing your responses before ...This is a PDF package of the official AP Biology 2018 full Exam, complete with all sections including: 1. SECTION I: Multiple Choice (Part A & B) 2. SECTION II: Free Response. 3. Answer Key. You can obtain full PDF package of the official AP Biology 2018 full exam here. Below is a preview of each sections.Proteins have a greater variety of three-dimensional forms than does DNA. Proteins have two different levels of structural organization; DNA has four. Proteins are made of 20 amino acids and DNA is made of four nucleotides. Only A and C are correct. A, B, and C are correct.Q-Chat. AP Biology Unit 3: Cellular Energetics Topics - Enzyme Structure, Enzyme Catalysis, Environmental Impacts on Enzyme Function, Cellular Energy, Photosynthesis, Cellular Respiration, Fitness Directions - For each question, choose the best answer (unless otherwise stated) Test Period - You have 30 minutes to answer 40 questions.The AP Biology exam is three hours long and is divided into two sections. Section I contains 120 multiple choice questions. This is divided into three divisions which include: regular multiple choice questions, matching questions, and questions dealing with experiments for data.AP Biology Unit 4: Cell Communication & Cell Cycle Practice Test (Multiple Choice) 30 terms. gracekang718. Preview. Biology Week 1 - Natural Selection. 9 terms. fandom_potatoes. Preview. Biochem Exam 1 (Based on Study Guide) 91 terms. Cici_Brower2. Preview. Chapter 3 Sec 1. Teacher 15 terms.60 of 60. Quiz yourself with questions and answers for AP BIO | 2020 Practice Exam 3 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. ….

60 of 60. Quiz yourself with questions and answers for AP Bio Practice Exam 1, 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.Hi AP Bio students! My name is Shriya and I'm a current 2nd year at UCLA studying psycho-biology. I'm holding bi-weekly AP Bio Bootcamp sessions to best help you prepare for the AP Bio exam. My qualifications: - 5 on the AP Bio exam. 7 on the IB Bio HL exam. - doing research here at UCLA in a psychobiology lab.AP US History Practice Multiple-Choice Questions: Period 1: 1491-1607. AP US History Practice Multiple-Choice Questions: Period 2: 1607-1754. AP US History Practice Multiple-Choice Questions: Period 3: 1754-1800. AP US History Practice Multiple-Choice Questions: Period 4: 1800-1848.Ap Bio Unit 3 MCQ study guide. 21 terms. Tia25Maria. Preview. AP Bio Unit 3 Test. 45 terms. JakeKoch. Preview. AP Biology Unit 3 FRQ Exam Prep ... Preview. AP Biology Unit 4: Cell Communication & Cell Cycle Practice Test (Multiple Choice) 30 terms. gracekang718. Preview. Unit 4 (Saber vs. Conocer) Teacher 18 terms. Matthew_Bake. Preview. Bio ...Jun 21, 2021 · The multiple choice questions are each worth one point. Although this scoring seems straightforward, it gets much more complicated: To find your final score, you multiply your multiple choice score by 1.03, your long-answer score by 1.5, and your short-answer score by 1.43. Sum these products to find your raw score for the AP Biology question ... Below are two different practice exams. The Review Guide Practice Exam has all of the questions from 2012 CED & 2020 CED. The 2013 AP Bio Practice Exam is the nationally released AP Practice Exam. (Note: They both are based on the old CED so there are questions that are no longer applicable). Review Guide Practice Exam. AP Biology. Multiple Choice Practice Test. Which of the following diseases is caused by the lack of a functional gene responsible for a specific enzyme? Free 2024 AP Biology multiple choice practice tests scored instantly online. Questions, answers and solutions to pass the ap biology test. There are two CEDs available for AP Environmental Science: 2020-21 AP Enviro Course and Exam Description: Aligned with the current APES exam. Contains 15 multiple-choice questions and two free-response questions. 2013-14 AP Enviro Course and Exam Description: Old format of AP test. Contains 17 multiple-choice questions and four free-response ...Most multiple choice questions on the AP Biology exam look pretty similar. While there are a few stand-alone questions, most, if not all, of the questions will come … Ap bio practice mcq questions, Oct 28, 2020 · Section I of the AP Biology Exam consists of 60 multiple choice questions that have an exam weighting of 50%. You will have 90 minutes to answer the 60 questions. Additionally, a four-function, scientific, or graphing calculator is allowed on both sections of the exam. All the multiple choice questions will appear either as individual questions ... , Vocabulary Quiz. This AP Macro vocab quiz has a total of 275 terms to review. A very thorough review. | | | | |. Work through dozens of challening exam questions on these AP Macroeconomics practice tests. Includes AP Macro multiple choice and free response questions., Cell membrane questions. Google Classroom. Which intermolecular process primarily drives the formation of a bilayer when phospholipids are added to water? Choose 1 answer: Lipids cause water to arrange in an ordered, unfavorable cage-like structure. Forcing lipids into a bilayer reduces this effect. A., AP Biology | Unit 4 MCQ Practice Questions. 24 terms. annachen-Preview. Unit 3: Bioenergetics. 30 terms. Xx--__Julia__--xX. Preview. Biology(The Nucleus) 14 terms. katie_cdoyle. Preview. Terms in this set (60) The centromere is a region in which. a) chromatids remain attached to one another until anaphase., AP Psychology Practice Exams. AP Psychology Practice Exams Free Response Notes Flashcards Study Guides. We have links to all of the best online AP Psychology practice exams. There are plenty of challenging tests to choose from, with hundreds of free practice questions. Pick an option from the list below to start your test prep right now! , Free 2024 AP Biology multiple choice practice tests scored instantly online. Questions, answers and solutions to pass the ap biology test. ... Question 1 of 3 27% Get this Question Right. In most flowering plants, photosynthesis occurs in leaves primarily in A: epidermal cells: B: bundle sheath cells: C: cells in the spongy mesophyll: D: cells ..., Cellular respiration. There is a group of enzymes that transfer a phosphate group from ATP to another molecule or vice-versa. What are these enzymes typically called? Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of ..., Worked examples of AP®︎ Biology free response questions. Unit 10. AP®︎ Biology standards mappings. Course challenge. Test your knowledge of the skills in this course. Start Course challenge. ... Practice. Environmental impacts on enzyme function Get 3 of 4 questions to level up! Cellular energy. If ATP is the energy currency of the cell ..., Biology Practice Exam and \ Notes Effective Fall 201\ 2 Biology 2 About the College \qBoard The College Board is a mission-driven not-for-profit organization that \bonne\bts students to \bollege su\b\bess and opportunity. Founded in 1900, the College Board was \breated to expand a\b\bess to higher edu\bation. Today, the membership asso\biation is …, Study guides & practice questions for 8 key topics in AP Bio Unit 6 - Gene Expression ... Score Higher on AP Biology 2024: MCQ Tips from Students. 7 min read. Score Higher on AP Biology 2024: Tips for FRQ 1 - Interpreting and Evaluation Experimental Results. 6 min read. Score Higher on AP Biology 2024: Tips for FRQ 2 - Interpreting and ..., AP Biology: Unit 1 Practice Test MCQ. 16 terms. Emory_Shantz. Preview. 3.2A Vocabulario. Teacher 42 terms. ABonatto. Preview. AP Bio: AP Classroom Unit 2 MCQ ... Preview. Life of animals. Teacher 41 terms. Banichloe. Preview. unit 3 government questions . 77 terms. newlandmr. Preview. AP Biology - Unit 1 Progress Check: MCQ. …, d. the number of neutrons in the outermost energy level. the pH of water to go down. When HCl is dissolved in water, it makes H+ ions and Cl- ions. This causes _____. a. the pH of the water to go up. b. a pH reading of 15. c. the pH of the water to go down. d. a pH reading of 7. It is a universal solvent. , 500+ Exam-Like Questions. Realistic questions mimic the style and difficulty of the AP Biology exam. Organized in the same way as the AP Biology course, so you learn as you go, all year long. Prepares you to excel on quizzes, unit tests, and the AP exam., The second portion of the AP Biology test is the Free-Response Section. In this section, you will have 80 minutes to answer six questions (2 long and 4 short). Practice is crucial to divide your time efficiently. You will get a 10-minute reading period between the multiple-choice and free-response sections. During this time you should read the ..., The AP Biology Exam format is: Section I: 90 minutes, 50% of final score. Part A. 63 Multiple-choice questions. Part B. 6 Grid-in questions. Section 2: 90 minutes, 50% of final score. 2 Long Free Response Questions (25% of grade) 6 …, AP Classroom is a online platform that offers teachers and students access to AP courses, exams, and resources. AP Classroom helps students develop the skills and knowledge they need to succeed in college and beyond. AP Classroom also provides feedback, practice, and support for AP exams, as well as video lessons, assignments, and quizzes for …, Learn More: · Multiple Choice Question on Enzymes · Multiple Choice Question on Enzymes · Multiple Choice Question on Protein Function · Multiple Choice Question on Protein Purification Answers: 26. d) all of these 27. c) Inhibitor 28. c) both a and b 29. a) K m increases and V max remains the same 30. d) Ser or Cys residues at or near the active site 31. c) decrease in V max and K m ..., A course redesign is coming summer 2024 to match the new AP® Psychology Course and Exam Description for the 2024-2025 school year. Be on the lookout for updates! Standards. Tags. Albert's AP® Psychology practice questions will help you review everything from the history of psychology to the inner workings of the mind., The AP Biology exam is 3 hours long and is divided into two sections: Section A: Multiple-choice questions. Section B: Free-response questions. Section A consists of 60 multiple-choice questions and is 1 hour and 30 minutes long. It weighs 50% of the total score. Section B consists of 6 free-response questions and is 1 hour and 30 minutes long., Study guides & practice questions for 7 key topics in AP Bio Unit 4 – Cell ... Score Higher on AP Biology 2024: MCQ Tips from Students. 7 min read. Score Higher on AP Biology 2024: Tips for FRQ 1 - Interpreting and Evaluation Experimental Results. 6 min read. Score Higher on AP Biology 2024: Tips for FRQ 2 – Interpreting and Evaluating ..., This AP Psychology practice test covers the biological bases of behavior. You should be familiar with physiological techniques, functions of the nervous system, neural transmission, neuroanatomy, neuroplasticity, the endocrine system, genetics, and evolutionary psychology. Our free practice quiz is a great place to start your test prep. As Jill ..., Questions 1 and 2 are long free-response questions that require about 22 minutes each to answer and are worth 10 points each. Questions 3-8 are short free-response questions that require about 6 minutes each to answer. Questions 3-5 are worth 4 points each and questions 6-8 are worth 3 points each. Read each question carefully and completely., When an AP Exam is administered, psychometric analysis determines the score ranges correspondingwith each AP Exam score (5, 4, 3, 2, and 1) based on a composite score scale that combines and weights the different exam parts. Earning 40-50% of the available points can result in a score of 3 or better on many AP Exams. , 2021 MCQ Practice Exam - AP Biology. The CFTR protein is made up of 1,480 amino acids linked together in a chain. Some humans produce a version of the CFTRprotein in which phenylalanine (an amino acid) has been deleted from position 508 of the amino acid chain. Which of the following best predicts how the amino acid deletion will affect the ..., AP Biology. Multiple Choice Practice Test. Which of the following diseases is caused by the lack of a functional gene responsible for a specific enzyme? Free 2024 AP Biology multiple choice practice tests scored instantly online. Questions, answers and solutions to pass the ap biology test., A. Yeast and mammals share a recent common ancestor. B. Early versions of cell communication mechanisms still used today must have evolved before the first multicellular organisms. C. Signaling molecules first evolved in multicellular eukaryotes. D. All cell communication systems are used for sexual reproduction. Question 2., The primary role of oxygen in cellular respiration is to. A) yield energy in the form of ATP as it is passed down the respiratory chain. B) act as an acceptor for electrons and hydrogen, forming water. C) combine with carbon, forming CO₂. D) combine with lactate, forming pyruvate., Ap Bio: Unit 7 Progress Check: MCQ. 25 terms. Rachel4635. Preview. Biology Chapter 1. 5 terms. selenaamercado24. Preview. Honors Biology Fall Final Study Guide - Part 2. 22 terms. ... Biology unit 3. Energetics Practice test. 82 terms. giannamaimone. Preview. Biology Test Chapter 2 Macromolecules. 32 terms. Luci_Fletcher. Preview. Biology ..., www.njctl.org PSI AP Biology Cell Cycle Multiple Choice Review - Cell Cycle Use the following options to answer questions #1-3: I. G 0 II. G 1 III. G 2 IV. S V. Mitosis VI. Cytokinesis 1. The cell cycle is divided into several distinct sub phases. Which sub phases occur during interphase? a. I, II, and III b. II, III, and IV c. I, II, III ..., ADP (adenosine diphosphate) has one high-energy bond. This bond is located between the second and third phosphate groups in the molecule. When this bond is broken, energy is released, and ADP is converted into ATP (adenosine triphosphate), which is the primary energy currency in cells. Rate this question: 1 1. 8., Most multiple choice questions on the AP Biology exam look pretty similar. While there are a few stand-alone questions, most, if not all, of the questions will come …, Worth 50% of total score. Free-Response Section: 6 questions (5 free response and one investigative task) 90 minutes. Worth 50% of total score. The only major difference between the current format and the format of the 1997 exam is that the 1997 exam had 35 multiple-choice questions instead of 40. The content the exam tests has remained ..., Test: AP Bio Unit 5 Practice Test. 3.6 (31 reviews) Name: Score: 96 Multiple choice questions. Term. A plant with purple flowers is allowed to self-pollinate. Generation after generation, it produces purple flowers. This is an example of. hybridization. incomplete dominance. true-breeding.