the fruit fly, Drosophila melanogaster, a spineless (sp, no wing bristles) female fly is mated to a male that is claret (cl, dark eyes) and hairless (h, no thoracic bristles). Phenotypically wild type F1 female progeny were mated to fully homozygous (mutant) males and the following progeny (1000 total) were observed. PHENOTYPES NUMBER OBSERVED spineless 266 wild 181 claret, spineless 18 claret 37 claret, hairless 264 hairless, claret, spineless 189 hairless 12 hairless, spineless 33 What is the correct gene map for these genes? (A-E) What is the interference value? (F-J) A. cl-------40------h------10-------sp B. sp-------10------cl------40-------h C. cl-------40------sp------10-------h D. sp------40------cl-------10-------h E. cl-------10-------h------40-------sp F. 0.75 G. 0.5

the fruit fly, Drosophila melanogaster, a spineless (sp, no wing bristles) female fly is mated to a male that is claret (cl, dark eyes) and hairless (h, no thoracic bristles). Phenotypically wild type F1 female progeny were mated to fully homozygous (mutant) males and the following progeny (1000 total) were observed. PHENOTYPES NUMBER OBSERVED spineless 266 wild 181 claret, spineless 18 claret 37 claret, hairless 264 hairless, claret, spineless 189 hairless 12 hairless, spineless 33 What is the correct gene map for these genes? (A-E) What is the interference value? (F-J) A. cl-------40------h------10-------sp B. sp-------10------cl------40-------h C. cl-------40------sp------10-------h D. sp------40------cl-------10-------h E. cl-------10-------h------40-------sp F. 0.75 G. 0.5

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter14: Human Inheritance

Section: Chapter Questions

Problem 2GP: Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect...

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n the fruit fly, Drosophila melanogaster, a spineless (sp, no wing bristles) female fly is mated to a male that is claret (cl, dark eyes) and hairless (h, no thoracic bristles). Phenotypically wild type F1 female progeny were mated to fully homozygous (mutant) males and the following progeny (1000 total) were observed.

PHENOTYPES NUMBER OBSERVED

spineless 266

wild 181

claret, spineless 18

claret 37

claret, hairless 264

hairless, claret, spineless 189

hairless 12

hairless, spineless 33

	What is the correct gene map for these genes? (A-E)
	What is the interference value? (F-J)

A.	cl-------40------h------10-------sp
B.	sp-------10------cl------40-------h
C.	cl-------40------sp------10-------h
D.	sp------40------cl-------10-------h
E.	cl-------10-------h------40-------sp
F.	0.75
G.	0.5
H.	0.33
I.	0.25
J.	0.125

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