What is not true about restriction enzymes?
a.All restriction enzymes create sticky ends with overhanging strands of DNA
b.Restriction enzymes cut both strands of double stranded DNA
c.A restriction enzyme generally recognizes and cuts a specific nucleotide sequence
d.Restriction enzymes cut at short (4-8 nt) palindromic sequences on DNA
e.Overhangs are sticky because they tend to form H-bonds with another overhang