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Hi Everybody, I have analyzed some RNA-Seq datasets using Deseq2. I have five samples of the Normal embryo and three samples of Trisomy 21. I got the PCA plot and I am not able to interpret what the plot means. I have done online research and tried to find it out but I am not able to understand as I don't have a statistician background and I am not able to find out what it means. I know from the sample that one group is an outlier. Can anybody please help me with what the data means? I have attached the plot to this forum.

**18k**• written 14 months ago by sally009 •

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https://ibb.co/hKbtO7

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