CODE MUST BE IN R

## GC-content of a piece of DNA is defined as the percentage of Gs + Cs. ## For example "ACCTGCA" has a 57.1% GC-content ## Write a function that will take a text file in FASTA format as input. ## FASTA format: A sequence record in a FASTA format consists of a single-line description (sequence name), followed by line(s) of sequence data. ## The first character of the description line is a greater-than (">") symbol. ## FASTA format Example: ## >seq0 ## FQTWEEFSRAAEKLYLADPMKVRVVLKYRHVDGNLCIKVTDDLVCLVYRTDQAQDVKKIEKF ## >seq1 ## KYRTWEEFTRAAEKLYQADPMKVRVVLKYRHCDGNLCIKVTDDVVCLLYRTDQAQDVKKIEKFHSQLMRLME LKVTDNKECLKFKTDQAQEAKKMEKLNNIFFTLM ## The output should be the sequence id with the lowest GC content followed by the calculated value gc_calculator = function ( fasta_file) {

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