29641 acaagtagat gtagttaact ttaatctcac atagcaatct ttaatcagtg tgtaacatta
29701 gggaggactt gaaagagcca ccacattttc accgaggcca cgcggagtac gatcgagtgt
29761 acagtgaaca atgctaggga gagctgccta tatggaagag ccctaatgtg taaaattaat
29821 tttagtagtg ctatccccat gtgattttaa tagcttctta ggagaatgac aaaaaaaaaa
29881 aaaaaaaaaa aaaaaaaaaa aaa
Geeze, that's a lot of a nucleotides—I don't think that's just random. I would guess that it's either an artifact of the sequencing process, or there is some underlying biological reason.
Question: Why does the SARS-Cov2 coronavirus genome end in 33 a's?
https://bioinformatics.stackexchange.com/questions/11227/why-does-the-sars-cov2-coronavirus-genome-end-in-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
https://www.ncbi.nlm.nih.gov/nuccore/NC_045512