The normal use of restriction enzymes by bacteria is to ____
a. integrate viral DNA
b. cut apart short sequences of bases in DNA
c. repair "sticky ends
d. copy the bacterial genes
e. clone DNA
ANSWER: b
You might also like to view...
What explains the coloration of giant kelp?
A. It facilitates absorption of the blue-green light prevalent in their environment. B. It facilitates absorption of the brown light prevalent in their environment. C. It warns grazers of their toxic properties. D. It camouflages them from grazers. E. It is the result of waste products stored in the tissues.
The rate of diffusion is influenced by ________.
Fill in the blank(s) with the appropriate word(s).
Species of ________ are known to decompose jet fuel and wall paint.
A. club fungi B. chytrids C. sac fungi D. AM fungi
Which of the following components of Streptococcus pyogenes are non-antigenic, i.e., do not elicit the host to produce antibodies against it, this it is an important virulence factor?
A. Group specific carbohydrate antigen (Lancefield's Classification) B. Capsule C. F protein D. M protein E. Streptolysin-O