試題詳解

34. Which of these statements about prokaryotes is correct?
(A) Bacterial cells conjugate to mutually exchange genetic material.
(B) Their genetic material is confined within a nuclear envelope.
(C) They divide by binary fission, without mitosis or meiosis.
(D) The persistence of bacteria throughout evolutionary time is due to their genetic homogeneity (i.e., sameness).
(E) Genetic variation in bacteria is not known to occur, nor should it occur, because of their asexual mode of reproduction.