Answer:
(C) Only BamHI and BglII fragments are compatible.
Explanation:
First we can visualize how the enzymes cut by completing the strand below and cutting where indicated. The three enzymes cut with cohesive ends.
Then we can complete the sense of the strands and serach compatible ends. Keep in mind that we can only join 5 'ends with 3' ends.
BamHI = G...3' 5'...GATCC
CCTAG...5' 3'...G
XbaI = T...3' 5'...CTAGA
AGATC...5' 3'...T
BglII = A...3' 5'...GATCT
TCTAG...5' 3'...A
In bold, leave the bases that remain in single strand and must be compatible with those of the other end.
To be compatible they must be complementary bases. A with T and C with G.
Now you can see that only BamHI fragments are compatible with those of BglII.
Yaa that statement is true, complex chemical catalyst of living cells are enzymes
