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ap biology - mendelian genetics & chi-square

originally streamed on February 12, 2020 with Caroline KoffkeTeacher
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Learn Mendelian and non-Mendelian genetics plus chi-square analysis for AP Biology. This review covers Punnett squares, inheritance patterns, codominance, incomplete dominance, blood types, sex-linked traits, and statistical analysis to help you prep ...more

timestamps

  • 0:00

    Introduction and Overview

  • 0:36

    Encouraging Questions

  • 1:37

    Upcoming Topics

  • 2:09

    Heredity and Vocabulary

  • 2:43

    Gregor Mendel and Peas

  • 3:46

    DNA Discovery Background

  • 4:47

    Genotype and Phenotype

  • 5:51

    Protein Production in Traits

  • 6:52

    Homozygous vs Heterozygous

  • 7:55

    Punnett Squares Basics

  • 8:58

    Independent Assortment Explained

  • 10:33

    Genetic Variation Possibilities

  • 12:39

    Punnett Square Example

  • 14:43

    Phenotypic Ratios

  • 16:17

    Practice Punnett Square

  • 17:53

    Non-Mendelian Genetics Intro

  • 19:27

    Codominance Examples

  • 22:32

    Incomplete Dominance

  • 24:05

    Multiple Alleles

  • 27:15

    Blood Types and Alleles

  • 30:26

    Sex-Linked Traits

  • 32:00

    Inheritance Example

  • 35:10

    Chi-Square Introduction

  • 37:47

    Equation Sheet Overview

  • 40:54

    Null Hypothesis

  • 42:27

    Degrees of Freedom

  • 44:32

    P-Value Explanation

  • 47:04

    Chi-Square Practice Setup

  • 50:12

    Observed vs Expected

  • 53:50

    Critical Value Comparison

  • 56:01

    Interpreting Results

  • 57:03

    Closing and Next Topics

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every AP exam is fiveable

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Study Content & Tools

Study GuidesFRQs + AI ScoringAP Essay Grader for StudentsAI Grading for TeachersPractice QuestionsGlossaryScore Calculators

Company

What's New?PricingBulk DiscountsTestimonialsFAQsEmail us

Resources

AP Exam Schedule 2027AP ClassesAP ClassroomEasiest AP ClassesHardest AP ClassesAP vs IBAP vs Dual EnrollmentAP vs Honors ClassesAP Scholar Awards

history

🌎 ap world history🇺🇸 ap us history🇪🇺 ap european history

social science

✊🏿 ap african american studies🗳️ ap comparative government🚜 ap human geography💶 ap macroeconomics🤑 ap microeconomics🧠 ap psychology👩🏾‍⚖️ ap us government

english & capstone

✍🏽 ap english language📚 ap english literature🔍 ap research💬 ap seminar

arts

🎨 ap art & design🖼️ ap art history🎵 ap music theory

science

🧬 ap biology🧪 ap chemistry♻️ ap environmental science🎡 ap physics 1🧲 ap physics 2💡 ap physics c: e&m⚙️ ap physics c: mechanics

math & computer science

🧮 ap calculus ab♾️ ap calculus bc📐 ap precalculus📊 ap statistics💻 ap computer science a⌨️ ap computer science p

world languages

🇨🇳 ap chinese🇫🇷 ap french🇩🇪 ap german🇮🇹 ap italian🇯🇵 ap japanese🏛️ ap latin🇪🇸 ap spanish language💃🏽 ap spanish literature

career kickstart

💼 ap business with personal finance🔒 ap cybersecurity

go beyond AP

high school exams

✏️ PSAT🎓 Digital SAT🎒 ACT

honors classes

🍬 honors algebra II🫀 honors anatomy🐇 honors biology👩🏽‍🔬 honors chemistry💲 honors economics📐 honors geometry⚾️ honors physics📏 honors pre-calculus📊 honors statistics🗳️ honors us government🇺🇸 honors us history🌎 honors world history

college classes

👩🏽‍🎤 arts👔 business🎤 communications🏗️ engineering📓 humanities➗ math🧑🏽‍🔬 science💶 social science

hs classes

🏛️ alabama history⛰️ appalachian studies🌴 california history🌍 earth science🌐 ethnic studies🐊 florida history🍑 georgia history🌎 global studies🌺 hawaiian studies📰 journalism🪶 native american studies🌵 new mexico history🤠 oklahoma history⚗️ physical science🎙️ speech and debate🤝 texas government🤠 texas history🌲 washington state history🕊️ world religions
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© 2026 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.