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Mnenie [13.5K]
3 years ago
12

If this trisomic male (ey+ ey-, gw+ gw-) is crossed with a (ey− ey−, gw− gw−) female, what proportion of the progeny will be phe

notypically wild-type?

Biology
1 answer:
Margaret [11]3 years ago
8 0
The Ey and the gw abbreviations stand for eyeless and gawky genes in the fruit fly Drosophila. A wild-type individual has at least one dominant allele for both of these genes.
In the cross presented below, you can see that 25% (shown in red) of the progeny would be wild-type and the rest of the progeny would show at least one recessive trait (eyeless or gawky)

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if you stood on the fault plane the block on the right would be under your feet. this is thus the footwall. The tan sandstone has been pushed up and over itself. This offset of the hanging wall indicates that this is a reverse fault.
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