The engrailed gene of Drosophila is expressed in 14 stripes in the embryo. This corresponds to...
The engrailed gene of Drosophila is expressed in 14 stripes in the embryo. This corresponds to a line of cells in each segment. If one makes a fly where all of the engrailed enhancers drive the expression of GFP (green fluorescent protein) you predict:
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A. The embryo will have evenly green fluorescence over its entirety.
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B. The embryo will have 7 stripes of green fluorescence.
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C. The embryo will have 14 stripes of green fluorescence.
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D. There will be no fluorescence since GFP only works in jellyfish.
Homework Answers
Answer:c
Engrailed gene express in posterior region of the segment. In those cells, which are present in posterior region of segment. It express in 14 segments. So the green fluorescence will be produce in posterior region of segment, where engrailed gene express.
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