Use string methods to print the following strings. Remember that methods work by
adding the function to the end of the object name using a ., like
mystring = 'Hello World'
print mystring.lower()
species in all capital lettersgcagtctgaggattccaccttctacctgggagagaggacatactatatcgcagcagtggaggtggaatgg
with all of the occurences of a replaced with AThank)gccgatgtacatggaatatacttttcaggaaacacatatctgtggagagg.