uestion 18 Recessive mutations in autosomal genes purple eye (pr), curved wing (c) and black body (b), as well as their wild type alleles are used for genetic mapping. An F1 Drosophila female heterozygous for purple eye (pr), curved wing (c) and black body (b) is crossed to a homozygous mutant male. This is a standard three-point mapping cross. The observed numbers and phenotypes of of the offspring from this cross follows: 360 pr c b 380 pr+c+b+ 107 pr c+ b 98 pr+ cb+ 27 pr c b+ 18 pr+ c+ b 6 pr c+b+ 4 pr+ cb A total of 1000 flies. What is the distance between genes pr and b? O21.5 m.u. 1 m.u. 5.5 m.u. 6 m.u. 21 m.u.
uestion 18 Recessive mutations in autosomal genes purple eye (pr), curved wing (c) and black body (b), as well as their wild type alleles are used for genetic mapping. An F1 Drosophila female heterozygous for purple eye (pr), curved wing (c) and black body (b) is crossed to a homozygous mutant male. This is a standard three-point mapping cross. The observed numbers and phenotypes of of the offspring from this cross follows: 360 pr c b 380 pr+c+b+ 107 pr c+ b 98 pr+ cb+ 27 pr c b+ 18 pr+ c+ b 6 pr c+b+ 4 pr+ cb A total of 1000 flies. What is the distance between genes pr and b? O21.5 m.u. 1 m.u. 5.5 m.u. 6 m.u. 21 m.u.
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
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Transcribed Image Text:Question 18
Recessive mutations in autosomal genes purple eye (pr), curved wing (c) and black body (b), as well as their wild type alleles are used for genetic mapping. An F1 Drosophila female heterozygous for purple
eye (pr), curved wing (c) and black body (b) is crossed to a homozygous mutant male. This is a standard three-point mapping cross. The observed numbers and phenotypes of of the offspring from this cross are
follows:
360 pr c b
380 pr+ c+b+
107 pr c+ b
98 pr+ c b+
27 prcb+
18 pr+ c+ b
6 pr c+b+
4 pr+ c b
A total of 1000 flies.
What is the distance between genes pr and b?
21.5 m.u.
1 m.u.
5.5 m.u.
6 m.u.
21 m.u.
Qu
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