AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

RECOMBINANT DNA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which are the following statements are NOT TRUE about restriction enzymes?
A
Most bacterium can produce more than one type of restriction enzyme
B
It cleaves DNA at a specific base sequence
C
It restricts the replication of foreign DNA in bacteria
D
It produces recombinant DNA in bacteria
Explanation: 

Detailed explanation-1: -No restriction enzyme is isolated from viruses.

Detailed explanation-2: -Final answer: Sticky ends have free, dangling, or unpaired nitrogen bases that can link with complementary bases on other DNA segments to form recombinant DNA.

Detailed explanation-3: -Which of the following statements not true for restriction enzyme which is used in genetic engineering? It produces the same kind of sticky ends in different DNA molecules.

Detailed explanation-4: -Answer and Explanation: Restriction enzymes do not cut at regular intervals; instead, they cut the DNA anywhere they find their specific restriction site.

There is 1 question to complete.