If you consult the FASTA format spec, all the lines in between headers will be the same length (except the last) and that count has no more significance than it is an arbitrary wrap point. All the lines between two header constitute as single sequence, not a set of sequences.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^3: Splitting a multi-sequence fasta file into individual sequences in individual arrays by BrowserUk
in thread Splitting a multi-sequence fasta file into individual sequences in individual arrays by krish28

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