Three recessive mutations in that affect eye colour, wing shape and body colourarew, m and b.The following numbers were obtained for testcross progeny in Drosophila.NumberPhenotype+ m +w + b+ + bw m+ m b21823616817895101w +++3w mb1(i)Determine the chromosomal composition of the heterozygous female parent.Construct a genetic map of the linkage group(s) these genes occupy. Show the orderand give the map distances between the genes.(ii)

In Drosophila , w , m , b are three mutations that impact on eye colour , shape of wing and body…

Three recessive mutations in that affect eye colour, wing shape and body colourarew, m and b. The following numbers were obtained for testcross progeny in Drosophila. Number 218 Phenotype + m + w + b + + b 236 168 178 w m + m b w + + + + 95 101 3 w m b 1 (i) Determine the chromosomal composition of the heterozygous female parent. Construct a genetic map of the linkage group(s) these genes occupy. Show the order and give the map distances between the genes. (ii)

Three recessive mutations in that affect eye colour, wing shape and body colourarew, m and b. The following numbers were obtained for testcross progeny in Drosophila. Number 218 Phenotype + m + w + b + + b 236 168 178 w m + m b w + + + + 95 101 3 w m b 1 (i) Determine the chromosomal composition of the heterozygous female parent. Construct a genetic map of the linkage group(s) these genes occupy. Show the order and give the map distances between the genes. (ii)

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter13: Genes, Chromosomes, And Human Genetics

Section: Chapter Questions

Problem 8TYK: Another gene in Drosophila determines wing length. The dominant wild-type allele of this gene...

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Question

Three recessive mutations in that affect eye colour, wing shape and body colourarew, m and b.
The following numbers were obtained for testcross progeny in Drosophila.
Number
Phenotype
+ m +
w + b
+ + b
w m
+ m b
218
236
168
178
95
101
w +
+
+
3
w mb
1
(i)
Determine the chromosomal composition of the heterozygous female parent.
Construct a genetic map of the linkage group(s) these genes occupy. Show the order
and give the map distances between the genes.
(ii)

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