A class of students mated fruit flies to study the inheritance of traits. The crosses and their results are described below. Cross 1: A female fruit fly with red eyes mates with a male fruit fly with brown eyes producing 63 offspring. All 63 offspring in this first generation have red eyes. Cross 3: A female fruit fly with black and tan striped body color mates with a male with black body color. In this first generation, al 56 offspring have black and tan striped body color. Cross 2: A red-eyed male and a red- eyed female from the first-generation mate to produce a second generation of flies. Out of the 98 offspring produced, 74 have red eyes and 24 have brown eyes. Cross 4: A black and tan striped male and a black and tan striped female from the first-generation mate to produce a second generation of flies. Out of the 103 offspring, 76 have black and tan striped body color and 27 have black body color. How do meiosis and gene expression explain the results from Crosses 1 and 2 OR from Crosses 3 and 4? Use evidence from the crosses to support your answer. You may include a diagram to support your answer. If you choose to include a diagram, you will be prompted to upload it on the next page
A class of students mated fruit flies to study the inheritance of traits. The crosses and their results are described below.
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Cross 1: A female fruit fly with red eyes mates with a male fruit fly with brown eyes producing 63 offspring. All 63 offspring in this first generation have red eyes. |
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Cross 3: A female fruit fly with black and tan striped body color mates with a male with black body color. In this first generation, al 56 offspring have black and tan striped body color. |
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Cross 2: A red-eyed male and a red- eyed female from the first-generation mate to produce a second generation of flies. Out of the 98 offspring produced, 74 have red eyes and 24 have brown eyes. |
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Cross 4: A black and tan striped male and a black and tan striped female from the first-generation mate to produce a second generation of flies. Out of the 103 offspring, 76 have black and tan striped body color and 27 have black body color. |
How do meiosis and gene expression explain the results from Crosses 1 and 2 OR from Crosses 3 and 4? Use evidence from the crosses to support your answer. You may include a diagram to support your answer. If you choose to include a diagram, you will be prompted to upload it on the next page.
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