1) The map below shows the relative positions of four autosomal markers on a normal Drosophila...
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1) The map below shows the relative positions of four autosomal markers on a normal Drosophila autosome. d 25.7mu units. Phenotype abcd a+c+ abc + a+cd Total C 2.2mu # of flies 91 89 9 11 200 a Wild-type males were X-irradiated and then mated to a/a, b/b, c/c, d/d females to generate F₁ heterozygotes. The phenotype of most of the F₁ heterozygotes was wild-type. However, one F₁ female was phenotypically c and a (that is a b c d*) 17.2mu This F₁ female progeny was mated to a homozygous recessive male from the true breeding stock. The resulting progeny exhibited the following phenotypic classes, in the numbers indicated: b a) What class of X-ray-induced mutation produced the results given in the table above? b) Describe this X-ray induced mutation quantitatively, in terms of map 1) The map below shows the relative positions of four autosomal markers on a normal Drosophila autosome. d 25.7mu units. Phenotype abcd a+c+ abc + a+cd Total C 2.2mu # of flies 91 89 9 11 200 a Wild-type males were X-irradiated and then mated to a/a, b/b, c/c, d/d females to generate F₁ heterozygotes. The phenotype of most of the F₁ heterozygotes was wild-type. However, one F₁ female was phenotypically c and a (that is a b c d*) 17.2mu This F₁ female progeny was mated to a homozygous recessive male from the true breeding stock. The resulting progeny exhibited the following phenotypic classes, in the numbers indicated: b a) What class of X-ray-induced mutation produced the results given in the table above? b) Describe this X-ray induced mutation quantitatively, in terms of map
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A Survey of Mathematics with Applications
ISBN: 978-0134112107
10th edition
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
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