Question: 1 . Explain the function of the following regular expression that is used on FASTA formatted sequence files obtained from GenBank: Find: ( > )

1. Explain the function of the following regular expression that is used on FASTA formatted sequence files obtained from GenBank:
Find:
(>)\w+\|\d+\|\w+\|(\w+)\.\d\|\s(\w+)\s\[(\w+)\s(\w+)\]\s+
Replace:
\1_\2_\3_\4_\5\r

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