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

Human Biology (MindTap Course List)
11th Edition
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cecie Starr, Beverly McMillan
Chapter20: Chromosomes And Human Genetics
Section: Chapter Questions
Problem 2CT: Human sex chromosomes are XX for females and XY for males. a. With respect to an X-linked gene, how...
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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 approximately 11.7 cM apart

   

The genes controlling raspberry-colored eyes and sable-colored bodies are both on the Y chromosome

   

The genes controlling raspberry-colored eyes and sable-colored bodies are both on the X chromosome

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Drosophila: 

Fly species belonging to the taxonomic order Diptera and family Drosophilidae include Drosophila melanogaster. The species is frequently referred to as the fruit fly, lesser fruit fly, vinegar fly, or pomace fly, though less frequently.

Due to its quick life cycle, straightforward genetics (only four pairs of chromosomes), and numerous offspring per generation, D. melanogaster is frequently used in research. Since all non-African lineages have a common ancestor, it was originally an African species. All continents, including islands, are included in its geographic range. A frequent pest in residences, eateries, and other locations where food is served is D. melanogaster.

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ISBN:
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