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Life Science Organizations
Life Science Organizations
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| Description | This resource is an in-class, hands-on, manipulative modeling exercise designed to allow students to visualize and demonstrate meiosis in a diploid cell by manipulating a simplified three-dimensional model of chromosomes in a model germ cell; this is for students to complete individually but work through in small groups. Meiosis is consistently a challenging process for students to grasp, likely because it occurs on a microscopic and molecular level that is abstract to student thinking. By allowing each student to manipulate individual model chromosomes in a model cell, the activity makes meiosis a tangible and accessible concept to students in a way that allows students to make sense of the abstract properties of meiosis. It can specifically incorporate challenging aspects of meiosis and processes that occur during or as a result of meiosis that are often difficult for students to understand or visualize, including: crossing over; ploidy of the cells in different stages of meiosis; the number of chromosomes, chromatids, and DNA molecules at different stages of meiosis; how individual maternal and paternal alleles travel to individual gametes; how meiosis leads to genetic variation; and how mistakes in meiosis can result in aneuploidy. The implementation of this activity is designed to appeal to visual, auditory, and kinesthetic learning styles. | |||
| Type of Resource | Laboratory or Hands-On Activity, Lecture / Lecture Outline / Lecture Notes | |||
| Format | Web Page - HTML | |||
| Technical Note | This resource contains an instructor guide, a supplementary guide to common student mistakes and misconceptions, an in-class handout, and a pre-class worksheet. | |||
| Author |
Mary Durham, University of Nebraska-Lincoln
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| Development Date | May 15, 2015 | |||
| Grade/Age Levels |
High School upper division (Grades 11-12) Undergraduate lower division (Grades 13-14) Undergraduate upper division (Grades 15-16) |
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| Pedagogies | ||||
| GSA Core Concepts and Core Competencies |
Nature of genetic material: What are the molecular components and mechanisms necessary to preserve and duplicate an organism’s genome?; Transmission/ patterns of inheritance: What are the mechanisms by which an organism’s genome is passed on to the next generation?; Core competencies: Students should be able to locate, read, and comprehend primary literature research papers on genetics topics.; Students should be able to communicate experimental results effectively, including writing research papers and giving presentations.; | |||
| Learning Time | <=1 hour | |||
| Language | English | |||
| Type of Review | Reviewed by Partner Organization | |||
| Review Date | August 12, 2015 | |||
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