Counting Severe Acute Respiratory Syndrome coronavirus 2 genome bps: Download the FASTA file (NC_045512.2) containing the SARS-CoV-2...

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Counting Severe Acute Respiratory Syndrome coronavirus2 genome bps: Download the FASTA file (NC_045512.2)containing the SARS-CoV-2 reference sequence. (You can use the\"Send\" widget on the upper-right corner of the NCBI Web pagecontaining the genome to download a FASTA file.) Now, write aPython program that reads the file, stores the sequence withoutwhite characters (spaces, end-of-line, etc.), and prints out thenumber of nucleotides (bps) in the complete SARS-CoV-2 genome.

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3.9 Ratings (782 Votes)

Here is the code:

f = open (\"NC_045512.2.fna\")
f.readline() # Ignore the header
c = f.readlines ()

l = \"\"
for e in c:
l += e.strip()

print (len(l))
#--- E N D O F C O D E

29903Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â

...Program finished with exit code 0

The NCBI site also shows 29903 as the number of bps, confirming above answer:

Severe acute respiratory syndrome coronavirus 2 isolate Wuhan-Hu-1, complete genome

Severe acute respiratory syndrome coronavirus 2

29,903 bp genomic sequence

NC_045512.2

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