BIOL 1103L FINAL!!

BIOL 1103L FINAL!! - BIOL 1103L C Elegans Summary April...

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BIOL 1103L C. Elegans Summary April Nicole Hobbs Thursday 12:20 Fangfang Pan Partner: John Burbank Fall 2007
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Introduction From our background information on C. elegans , we realized that most of the Adults were hermaphrodites. A hermaphrodite is a C. elegan that produces both eggs and sperm. This means that they are able to produce through self-fertilization, and they are also able to mate with the male C. elegans . The male C. elegans are not able to produce offspring without mating with a hermaphrodite. Typically 50 percent of the F1 offspring between a male and a hermaphrodite will be male C. elegans . When observing the mutated C. elegans under the microscope that were presented to us in class, we were able to conclude that all of the C. elegans that were mutated were hermaphrodites. Therefore, we knew that the hermaphrodites expressed the gene while the male did not. But this did not mean that males cannot be carriers of a mutation. The mutations that were observed were dpy-5, dpy-10, and unc-76. We compared these mutations to the characteristics of a normal wild-type C. elegan . The dpy-5 mutation contained hermaphrodites that were slower in movement and appeared to be smaller than normal. Although they were smaller in length, they also appeared to be thicker in width. We also observed a lot of “clumping” with the hermaphrodites. The dpy-10 mutated C. elegans had almost no movement. They were very small and thin when compared to the normal wild-type C. elegan . The unc-76 C. elegans were smaller and slower when compared to the normal wild-type. We were able to determine that all of the mutated C.elegans were hermaphrodites through our background information on the difference between the males and hermaphrodites. The males have a bubble- like structure on the tail while the hermaphrodites generally have a smooth pointed tail. All of the mutated C. elegans seemed to have a smooth pointed tail.
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BIOL 1103L FINAL!! - BIOL 1103L C Elegans Summary April...

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