CTTAAG
GAATTC
(a) What are such sequences called? Name the enzyme used that recognizes such nucleotide sequences.
(b) What is their significance in biotechnology?
Answer:
(a) Palindromic sequences (0.5), endonuclease enzyme.
(b) Restriction enzymes can make complementary cut counterparts forming sticky ends for recombination DNA / RDNA technology/ to facilitate ligation of vector and foreign DNA.