Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Using the link provided. Mate two flies. a male is a wild type and a female has yellow body and purple eyes.
Use: https://www.sciencecourseware.org/FlyLabJS/
- Which mutant alleles are dominant? Which mutant alleles are recessive?
- Which mutant alleles are sex-linked? Which mutant alleles are autosomal?
- Can you tell at this point if the two genes are linked?
- Show the results of the dihybrid analysis. Are genes segregating independently? What is the evidence for or against this?
- Show the crosses you will use to obtain the mapping data.
- For the mapping crosses, Write out the crossing scheme and make a table of the results (ignore sex in this table, combine the male and female progeny). Identify the parental classes and the recombinant classes. For a 3-point cross, identify the double cross overs. Show your calculations for the recombination frequencies between the three genes (for the 3-point cross) or the two genes (for the two-point crosses).
- Draw a map of the Drosophila chromosomes 2, 3, and X, including your genes and all of the known mapping genes.
- Do estimated map positions map the reported positions reported in flybase?
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