def validate_sequences(seed_sequence, extracted_full_seq, rnac=True):
    """
    Validates whether the SEED sequence matches the sequence
    extracted at specific coordinates

    seed_sequence: A DNA/RNA sequecne extracted from the SEED alignment
    extracted_full: A DNA/RNA subsequence extracted at specific locations

    return: True if the sequences match, False otherwise. Returns False by default
    """

    new_seed_sequence = seed_sequence

    if rnac is False:
        new_seed_sequence = seed_sequence.replace('U', 'T')

    if extracted_full_seq.find(new_seed_sequence) != -1:
        return True

    return False