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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def checkBim(fileName, minNumber, chromosome):
 """Checks the BIM file for chrN markers. :param fileName: :param minNumber: :param chromosome: :type fileName: str :type minNumber: int :type chromosome: str :returns: ``True`` if there are at least ``minNumber`` markers on chromosome ``chromosome``, ``False`` otherwise. """

    nbMarkers = 0
    with open(fileName, 'r') as inputFile:
        for line in inputFile:
            row = line.rstrip("\r\n").split("\t")
            if row[0] == chromosome:
                nbMarkers += 1
    if nbMarkers < minNumber:
        return False
    return True