Drosophila
The principles used in this report are the same that would apply for any species. The purpose of the exercise was to examine and learn the changes and the mutations which are passed down from generation to generation. By observing the genetic variation in the flies, we were able to see the way it affects future generations. The method is simple; allow the flies to do the reproduction thing, then we knock them out by inserting a small pipe-cleaner with ‘Fly-Nap’ on it into their habitat. Once the flies stopped moving, we opened their tube, poured them out, and meticulously counted them under a dissection microscope. We also observed their sex and sex-related traits and recorded them. Once we had used them for our evil purposes, we disposed of them accordingly by pouring the pathetic flies into a jar of alcohol. Our flies had varied a lot, but we may have been able to determine dominate and recessive genes for each. We counted our flies twice, and came up with a total of 160. For our results to be precise, we had to allow for P-1 mutations. We did a fly count about twice a week for two weeks. Out F-1 phenotypes and genotypes were non-typical. The phenotypes were yellow/tan body-white eyes, and yellow/tan body-red eyes.
Tan Body/ Red Eyes/ Vestigial Wings: 2 The dominate body color trait is definitely yellowish brown/tan. There is no question about this assumption. The dominant trair for eye color is red. This is odd because in one observed situation, white eyes out numbered red eyes by a large margin [this is most likely due to human error]. The remaining traits are recessive. These traits are white body and white eyes. We had small instances of vestigial wings, they tend to be recessive.
Some topics in this essay:
F-2 Generation’s,
F-1’s P-1,
,
White Eyes,
Red Eyes,
white eyes,
red eyes,
Body/ Red,
body/ white eyes,
body/ red,
Body/ White,
body/ white,
Fly Count,
body/ red eyes,
tan body/,
Tan Body/,
white body/,
White Body/,
yellow bodies,
tan body/ red,
white bodies,
fly count,
vestigial wings,
bodies white/red eyes,
traits sex linked,
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Approximate Word count = 1075
Approximate Pages = 4 (250 words per page double spaced)
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