Starting material: A true-breeding strain of red-eyed fruit flies plus one white-eyed male fly that was discovered in the culture. Experimental level Conceptual level xwY x xwxw 1. Cross the white-eyed male to a true-breeding red-eyed female. P generation 2. Record the results of the F1 generation. F1 generation This involves noting the eye color and sex of many offspring. male offspring and X X" female offspring, both with red eyes x XW X" XWY хwү1Х**ҳ* I red-eyed male : 1 white-eyed male : 2 red-eyed females X"'X" 3. Cross F1 offspring with each other to obtain F2 offspring. Also record the F2 generation eye color and sex of the F2 offspring. 4. In a separate experiment, perform a testcross between a white-eyed male from the F2 generation and a red-eyed female from the F1 generation. Record the results. X" Yx X" X" | X"'Y I X" Y: I X"X" : 1 X"X"| red-eyed male : 1 white-eyed male : I red-eyed female : white-eyed female

Starting material: A true-breeding strain of red-eyed fruit flies plus one white-eyed male fly that was discovered in the culture. Experimental level Conceptual level xwY x xwxw 1. Cross the white-eyed male to a true-breeding red-eyed female. P generation 2. Record the results of the F1 generation. F1 generation This involves noting the eye color and sex of many offspring. male offspring and X X" female offspring, both with red eyes x XW X" XWY хwү1Х**ҳ* I red-eyed male : 1 white-eyed male : 2 red-eyed females X"'X" 3. Cross F1 offspring with each other to obtain F2 offspring. Also record the F2 generation eye color and sex of the F2 offspring. 4. In a separate experiment, perform a testcross between a white-eyed male from the F2 generation and a red-eyed female from the F1 generation. Record the results. X" Yx X" X" | X"'Y I X" Y: I X"X" : 1 X"X"| red-eyed male : 1 white-eyed male : I red-eyed female : white-eyed female

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 29QP

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Copyright © 201 Virtual Coursewa ses Analyze Lab Notes Include a test of hypothesis e sex of flies Results for Cross #2 Observed Proportion Phenotype 423 0.4226 0.0060 PR 50 0.0500 VG 29 0.0290 BL 17 0.0170 PR. VG PR. BL 59 0.0589 V.G. BL 3. 0.0030 P.R.V.G. BL 414 0.4136 Total 1001 1.0000 Mapping Ex....docx
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