diff --git a/sequence_extractor/exon_concatenation.py b/sequence_extractor/exon_concatenation.py
index d95ef0ac629adb5b3c66078f3877bd8eb22f518e..4a4b1c0e6d207dc2fea601df8ceec55abec1de02 100644
--- a/sequence_extractor/exon_concatenation.py
+++ b/sequence_extractor/exon_concatenation.py
@@ -1,13 +1,13 @@
 def exon_concatenation(
 	post_bedtools_fasta: str
 ) -> list:
-	"""Concatenate all sequences starting with identical transcripit ID and outputs it as a list with sequence header (Transcript ID) and concatenated sequences.
+	"""Concatenate all sequences starting with identical transcripit ID and outputs it as a list with sequence header (Transcript ID) and concatenated sequences as tuples.
 
 	Args:
 		post_bedtools_fasta: The name of the fasta file obtained after bedtools has been run
 
 	Returns:
-		A list with transcript ID in even indices and corresponding concatenated exons in odd indices.
+		A list containing transcript ID and concatenated exons in tuples.
 	"""
     with open(post_bedtools_fasta,'r') as fa:
         annotation = []
diff --git a/sequence_extractor/polyA.py b/sequence_extractor/polyA.py
index 8c1715aa47adfcb8cf8ebd4435024b22e065506a..cafa91b35da1c6244dde04b565b49923c2120a4f 100644
--- a/sequence_extractor/polyA.py
+++ b/sequence_extractor/polyA.py
@@ -18,10 +18,10 @@ def polyA_generator(
 def polyA_addition_to_fasta_list(
 	fasta_list: list,
 ) -> list:
-	"""Takes in a list of alternate annotations and exons and outputs a list where polyA tail has been added to all the exon 3' ends.
+	"""Takes in a list of tuples with annotations and exons and outputs a list where polyA tail has been added to all the exon 3' ends.
 
 	Args:
-		fasta_list: List contaning annotations and exons, with every element being an equivalent to a line in the fasta file
+		fasta_list: List contaning tuples of annotations and exons
 
 	Returns:
 		A list like the initial list, this time with polyA tail added onto it.