Module 4
count()
Counting occurrences of a substring.
Counting occurrences
The count() method returns how many times a substring appears in a string.
Python
seq = "ATGCGCA"
print(seq.count("A"))
print(seq.count("GC"))→ 2
2
Your task
Count occurrences
- Count how many times A appears in ATGCGCA.