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    1. Courses
    2. [TEA-SEP-25] SBI3U Biology Grade 11 by Ms E. Hou(2025-26 T1)
    3. Lesson 2.3 - Abnormal Meiosis & cytoplasmic inheritance

    Lesson 2.3 - Abnormal Meiosis & cytoplasmic inheritance

    • Lesson 2.3 - Abnormal Meiosis & cytoplasmic inheritance

      Lesson 2.3 - Abnormal Meiosis & cytoplasmic inheritance

      Learning Goals: By the end of class, I will be able to

      1. Define key Terms: non-disjunction, trisomy, monosomy, Down syndrome, prenatal testing, maternal inheritance, paternal inheritance, horizontal gene transfer.
      2. Understand what abnormal Meiosis is and what happens
      3. Be able to give some examples of Non-disjunction disorders
      4. Be able to give examples of tests for non-disjunction and technologies to help

      •  Biology 11 Textbook 4.4 File
      •  Biology 11 Textbook 4.5 File
      •  Lesson 2.3 - Abnormal meiosis and cytoplasmic inheritance (4.4, 4.5)
      •  Non-Disjunction Interactive Assignment

        Open the following page: https://mattgilbert.net/biologygames/meiosis/index.html

        Construct a normal meiosis process and then a case where non-disjunction occurs. At the end of each, create a combination of gametes in both cases. Provide screenshots of your constructions.

      •  Non-Disjunction Interactive 2 Assignment

        Open the following page:

        https://www.biomanbio.com/HTML5GamesandLabs/Genegames/nondisjunctionpage.html

        Go through the interactive and answer the quiz questions. Provide a screenshot of your final result.

      •  Mitosis & Meiosis Quizizz (Independent) URL
      •  Lesson 2.3 Homework (Ch. 4.4 & 4.5) Assignment

        1. Answer Learning Goals

        2. 

        Textbook 4.4 pg166. #1, 2, 6, 9

        Textbook 4.5 pg170. #1, 4, 5

      •  Lesson 2.3 Textbook Answer Keys File
        Restricted Not available unless: The activity Lesson 2.3 Homework (Ch. 4.4 & 4.5) is marked complete
      •  Lesson 2.3 Exit Card Questionnaire

        Students to complete this after you've finished all activities/tasks in today's lesson.

    Previous section
    Lesson 2.2 - Sexual Reproduction
    Next section
    Lesson 2.4 - Mendelian Inheritance & Variations in Heredity
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