code: def get_gene_seqs(database_path, gene):
      
      gene_path = database_path + "/" + gene + ".fsa"
      gene_seq = ""
      # Open fasta file
      with open(gene_path) as gene_file:
          header = gene_file.readline()
          for line in gene_file:
              seq = line.strip()
              gene_seq += seq
      return gene_seq
docs: This function takes the database path and a gene name as inputs and 
      returns the gene sequence contained in the file given by the gene name