A rosy-eyed Drosophila was crossed with a forked bristle Drosophila. The F1 were all wild-type while the F2 consisted of 306 wild-type, 94 rosy-eyed, 102 fork-bristled, and 33 forked bristled and rosy-eyed flies. Infer the genotype of the F1. a) RRff x rrFF b) RrFf x RrFf c) RRFF x rrff d) rrff x rrff e) none of these are correct

A rosy-eyed Drosophila was crossed with a forked bristle Drosophila. The F1 were all wild-type while the F2 consisted of 306 wild-type, 94 rosy-eyed, 102 fork-bristled, and 33 forked bristled and rosy-eyed flies. Infer the genotype of the F1. a) RRff x rrFF b) RrFf x RrFf c) RRFF x rrff d) rrff x rrff e) none of these are correct

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Description: A rosy-eyed Drosophila was crossed with a forked bristle Drosophila. The F1 were all wild-type while the F2 consisted of 306 wild-type, 94 rosy-eyed, 102 fork-bristled, and 33 forked bristled and rosy-eyed flies. Infer the genotype of the F1. a) RRff

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter6: Cytogenetics: Karyotypes And Chromosome Aberrations

Section: Chapter Questions

Problem 2QP: Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the...

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To determine the recombination frequency between body color and wing genes in flies, you perform several crosses where you cross an F1 having red body and smooth wings with a yellow-bodied, crinkle-winged fly. You get the following results. What is the distance between the genes for body color and wing surface in map units?
Females of wild-type Strain A and males of mutant Strain B, as well as females of mutant Strain B and males of wild-type Strain A, make reciprocal crosses. Explain why reciprocal crosses are needed in genetics experiments involving Drosophila fruit flies.
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Given the karyotype shown at right, is this a male or a female? Normal or abnormal? What would the phenotype of this individual be?
In a series of two-point map crosses involving five genes locatedon chromosome II in Drosophila, the following recombinant (single- crossover) frequencies were observed:pr–adp 29pr–vg 13pr–c 21pr–b 6adp–b 35adp–c 8adp–vg 16vg–b 19vg–c 8c–b 27 In another set of experiments, a sixth gene (d) was testedagainst b and pr, and the results were d - b = 17% andd - pr = 23%. Predict the results of two-point mapsbetween d and c, d and vg, and d and adp.
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In Drosophila, males from a true-breeding stock with raspberry-colored eyes were mated to females from a true-breeding stock with sable-colored bodies. In the F1 generation, all the females had wild-type eye and body color, while all the males had wild-type eye color but sable-colored bodies. When F1 males and females were mated to each other, the F2 was composed of: 216 females with wild-type eyes and wild-type bodies 223 females with wild-type eyes and sable bodies 191 males with wild-type eyes and sable bodies 188 males with raspberry eyes and wild-type bodies 23 males with wild-type eyes and bodies 27 males with raspberry eyes and sable bodies Which statements are consistent with the above data? (Select all correct answers.) The alleles causing the raspberry-colored eye and sable-colored body phenotypes are dominant to the corresponding wild-type alleles The genes controlling raspberry-colored eyes and sable-colored bodies map…
In a series of two-point mapping crosses involving five genes located on chromosome II in Drosophila, the following recombinant (single-crossover) frequencies were observed: pr–adp 29% pr–vg 13 pr–c 21 pr–b 6 adp–b 35 adp–c 8 adp–vg 16 vg–b 19 vg–c 8 c–b 27 (a) Given that the adp gene is near the end of chromosome II (locus 83), construct a map of these genes. (b) In another set of experiments, a sixth gene, d, was tested against b and pr: d–b 17% d–pr 23% Predict the results of two-point mapping between d and c, d and vg, and d and adp.
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