This document outlines a 45-minute lesson plan on meiosis and gene linkages for high school biology students. The lesson includes a PowerPoint presentation, discussion of mitosis vs meiosis, drawing and acting out the phases of meiosis, explaining gamete formation and gene linkage, and a follow-up lab on mutations. Formative and summative assessments are used to evaluate students' understanding of the key concepts taught.

2. When was the mutation discovered?

3. How common is the mutation?

4. What causes the mutation?

5. Is the mutation recessive, dominant, incompletely dominant, codominant, sex-linked, or environmental?

6. Does the mutation cause a phenotypic change, genotypic change, or both?

7. Are there medications the people have to take, what are they?

8. Are there lifestyle changes the people have to make, what are they?

9. What is the common life span of someone with the mutation?

10. Are they able to reproduce? If not, why is that important to survival of the human race?You will also need a visual. This can be a poster, a PowerPoint presentation, a home-made video, or something else pre-approved by me <br />You will give a 10 min oral presentation. Everyone in your group must speak. If you choose a video, that can take up no more than 3 min of your presentation time.<br />You will be given time in class to discuss with your group where you are in the research. Plan ahead wisely. You may want to assign different jobs for people in the group: the handout, the visual, and perhaps a script for the presentation. <br />All information in the handout and presentation must be cited using approved format for class! Remember: you need at least 5 journal articles; no Wikipedia; no unaccredited websites (only information from websites that end in .edu or .gov)<br />Extra Credit: Discuss in handout or presentation how the media has portrayed the mutation. This can include celebrities with the mutation, movies, songs, newscasts, myths, etc. For this section ONLY you may use Wikipedia and unaccredited websites, as necessary.<br />This will count as a test grade.<br />Good luck!<br />Meiosis and Gene Linkage Lecture Notes<br />Chromosome Number<br />A cell that contains _________ sets of homologues chromosomes is said to be diploid<br />Homologous chromosomes are when the chromosomes that come from male <br />parent have a corresponding chromosome from the female parent<br />The _____________ of sexually reproducing organisms are haploid, because they only have ______ set of chromosomes<br />Phases of Meiosis<br />Meiosis is a process of ______________division in which the number ______________ per cell is cut in __________through the separation of homologous chromosomes in a diploid cell<br />By the end of meiosis II, the diploid cell that entered meiosis has become _________ haploid cells<br />Meiosis I: Prophase<br />Each chromosome pairs with its corresponding homologous chromosome to form a structure called a ___________; therefore, there are four _______________in a tetrad<br />As they form the tetrads, they exchange portions of their chromatids in a process called _____________________<br />Meiosis I: Metaphase<br />_________________________ attach to the chromosomes<br />Meiosis I: Anaphase<br />The fibers pull the homologous chromosomes toward ______________ ends of the cell<br />Meiosis I: Telophase and Cytokinesis<br />___________________________ form. The cell separates into ________ cells<br />These two cells enter Meiosis II<br />Meiosis II: Prophase<br />Unlike the first division, neither cell goes through a round of chromosome ________________ before entering meiosis II<br />Each of the cell’s chromosomes has 2 chromatids<br />Meiosis II: Metaphase<br />Chromosomes line up in the ____________ of each cell<br />Meiosis II: Anaphase<br />The paired chromatids separate and move toward ________________ ends of the cell<br />Meiosis II: Telophase and Cytokinesis<br />Each cell separates into two cells - meaning __________ haploid cells all together<br />Gamete Formation<br />In __________ animals, meiosis produces four haploid sperm cells<br /> However, the cell divisions at the end of meiosis are uneven in females, so that only a _____________ cell receives most of the cytoplasm<br />Mitosis vs. Meiosis<br />Mitosis results in the production of two genetically ______________ diploid cells<br />Meiosis produces four genetically ______________ haploid cells<br />Gene Linkage<br />It is the __________________ that assort independently, not the individual genes<br />Each chromosome is a group of linked genes<br />Gene Maps<br />Crossing-over during meiosis sometimes separates ___________ that had been on the same chromosomes onto homologous chromosomes, producing new combinations of _____________<br />