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Organisms vary widely in the number of chromosomes per cell. The ant, Myrmecia pilosula, has only two chromosomes (one pair) per cell.
Organisms vary widely in the number of chromosomes per cell. The ant, Myrmecia pilosula, has only two chromosomes (one pair) per cell. By contrast, the fern, Ophioglossum, has up to 1260 chromosomes (630 pairs) per cell. This variation among organisms seems to be unrelated to how complex those species are. The precise chromosome number, though, seems to be an important characteristic. So an ant with one pair of chromosomes must have just one pair of chromosomes. And a fern with 1260 chromosomes must have 1260 chromosomes. Any different number results in changes in characteristics that are often so dramatic that the organisms cannot survive.Aneuploidies Humans typically have 46 chromosomes (23 pairs) per cell. Human aneuploidies are conditions where the chromosome number is not 46. Select a human aneuploidy. Describe the symptoms of this human aneuploidy, and explain the cellular processes that lead to this condition.Address all Discussion topics in the Discussion area. Your initial post should be at least 100 words and contain references; excluding references. In addition, respond to at least two of your colleagues’ posts with meaningful comments in accordance with the syllabus. Each post should be at least 50 words. Please be sure to cite all of your sources. NOTES: For this discussion assignment, I need 1 textbook and 1 website references. Thank you.
