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Need help with my Writing question – I’m studying for my class.Introduction: Mid

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Need help with my Writing question – I’m studying for my class.Introduction: Mid to Late Pleistocene Homo Discussion Board For years we have been able to analyze the fossils of extinct humans like those of Neanderthals. Their bones gave us clues to how they looked, how they lived, and how they might be related to us. In the last few years, we have been able to get a better view into these extinct species and their relationship to our species. Thanks to next generation genomic sequencing technologies, we have been able to obtain genetic data on Neanderthals, Denisovans and others that have allowed us to make direct comparisons between our species and theirs. In addition, we have been able to observe the presence of DNA from these extinct species within our own genomes which tell us that we had kids with these now extinct humans.Comparing Neanderthal DNA to ourselves, we find that we share 99.5 percent of our DNA with them. Which means that we and Neanderthals were separated from each other for more than 500,000 years. This also means that we were genetically similar enough to be able to have offspring with each other. We see evidence of this genetic introgression, or exchange of genes, between us and Neanderthals when we look at our DNA. Interestingly, if we obtain one thousand DNA samples from our college students, we estimate that we would be able to extract at least 20% of the Neanderthal genome from them. This means that 20% of our collective nucleotide sequences are shared with Neanderthals but this doesn’t mean that 20% of our genes are Neanderthal specific genes. Of the twenty-one thousand genes that Neanderthals had, only a few dozen of their genes survive in our species today. The same holds true for Denisovans. What is more interesting is that older versions of ourselves have a tendency to have higher levels of DNA from extinct humans compared to ourselves. In other words, over the course of thousands of years we have been slowly weeding out the DNA of the other humans from our genome in favor of our genes. One basic question that we might like to ask is why have we been losing Neanderthal and Denisovan genes over time? Also, why do we still have a significant amount of DNA segments that don’t seem to be going anywhere? The answer to this has to do with selection. The answer to the first part of the question has to do with the fact that we were not fully genetically compatible with the other human species to begin with. Basically, to have had Neanderthal or Denisovan genes in the past meant that an individual’s level of fitness was decreased. In other words, their ability to survive and pass on their genes to the next generation was reduced. The answer to the second question has to do with the fact that Neanderthal and Denisovan genes that remain within us have been selected for since they confer an advantage to our species. What you are doingYour task for this week is to look for information about one Neanderthal or Denisovan genetic variant that have survived within our species and to research their adaptive advantage.What you have to do for pointsIn your post, discuss ONE Neanderthal or Denisovan gene variant that is currently found within our species.Tell us about only one gene that we inherited from Neanderthals or Denisovans. Make sure you mention its name and what species it came from.
Explain in your own words how your chosen Neanderthal or Denisovan gene has enhanced our species fitness. Make sure you give an informed opinion that is grounded in your research. You will have to respond to one other student posts. Make sure you cite your work.
Grading rubric Click on the “Gear icon” located in the top right-hand corner and then click on “Show Rubric” to view the grading requirements for this discussion. Tips for successPlease keep your answer to only what is asked in the assignment.
I recommend composing your content offline in a text editor and then copy and paste the text into your reply post. If something happens you will have an offline copy of all of your hard work!
I highly recommend using Google Docs (Drive) to compose offline, as Google plays well with web-based forums. If you are using Microsoft Word to compose offline, you may need to do some editing to the format when you paste it into the reply.
Requirements:   |   .doc file | MLA | Discussion | 1 pages, Single spaced