Worksheet - CGS - Results of Crosses - updated FS2022

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University of Cincinnati, Main Campus *

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1001

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Biology

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Feb 20, 2024

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Uploaded by DoctorExploration21747

Names : Grace Miller, Matthew Johnson, Alex Huber, Queen Hurry Section : 006 Group (Circle One): groupa groupb groupc groupd groupe groupf CGS Worksheet (20 pts) Instructions: Answer the following questions based on the results of your CGS crosses. As a reminder, you were assigned two problems within the CGS Fly Lab simulator. While this worksheet requires answers for both problems, you will only create the PowerPoint for one of those problems (based on what your instructor assigned you). Each problem has 2 traits. IN ADDITION TO ANSWERING THE FOLLOWING QUESTIONS : You must show your work. Please attach the “Classical Genetics Simulator Record Pages” that you filled out in Week 1 and Week 2. If you do not include this record of your crosses, you will receive a 10-point deduction on this assignment. Classical Genetics Simulator.docx A. Problem that you are presenting (Circle One) Morgan Mendel McClintock 1. Name of Trait 1: Bristle (Stubble, wild, and forked) Name of Trait 2: Wing angle (Hybrid, wild, dichaete) a. Is Trait 1 autosomal or sex-linked (1 pt)? Autosomal b. What is the mode of inheritance for Trait 1 (2 pts)? Codominance c. Is Trait 2 autosomal or sex-linked (1 pt)? Sex-linked d. What is the mode of inheritance for Trait 2 (2 pts)? Y-linked 2. Linkage of Traits 1 and 2 a. Are Trait 1 and Trait 2 linked (2 pt)? No, they are not linked b. How do you know that they are or are not linked (2 pt)? One trait is autosomal and one trait is sex linked B. Additional problem (Circle One) Morgan Mendel McClintock 3. Name of Trait 3: Tarsi (Truncated or wild) Name of Trait 4: Scutellum (Brown or white) a. Is Trait 3 autosomal or sex-linked (1 pt)? Autosomal

b. What is the mode of inheritance for Trait 3 (2 pts)? Dominant/recessive c. Is Trait 4 autosomal or sex-linked (1 pt)? Autosomal d. What is the mode of inheritance for Trait 4 (2 pts)? Dominant/recessive 4. Linkage of Traits 3 and 4 a. Are Trait 3 and Trait 4 linked (2 pt)? Yes, the tarsi and scutellum and linked. b. How do you know that they are or are not linked (2 pt)? Both traits are autosomal and when mixing a AaBb with aabb we did not get a 1:1:1:1 ratio. The recombination value is 8.2%

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