What makes phages so specific in their host range?
Answer: Phages attach to receptors on their host cell; if a cell lacks those receptors, the phage cannot infect it.
You might also like to view...
Bivalves lack which of the following molluscan
features? a. foot b. radula c. mantle d. shells e. visceral mass
Which sense is a general sense?
A) pressure B) smell C) hearing D) vision
Which one of the following is represented by the calculation: (number of births — number of deaths)/total population?
A) fertility rate B) birth rate C) population growth rate D) replacement fertility rate E) zero population growth
When considering DNA and RNA, which of the following statements is generally FALSE?
a. There are five major types of nitrogenous base. b. There are two types of purines and three types of pyrimidines. c. There are two types of purines and two types of pyrimidines. d. A free 3' hydroxyl group is found in deoxyribose. e. A free 3' hydroxyl group is found in ribose.