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Explanation states that long arms are lost but this is wrong, The two tiny short arms, which contain repetitive DNA sequences, are lost during this process, usually without significant consequence. The long arms (q arms) of these two chromosomes then fuse together at their centromeres. 

Location: 3.7 Genetics Quiz

Explanation states that long arms are lost but this is wrong, The two tiny short arms, which contain repetitive DNA sequences, are lost during this process, usually without significant consequence. The long arms (q arms) of these two chromosomes then fuse together at their centromeres. 

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