Site MapHelpFeedbackPre-Test
Pre-Test
(See related pages)

1
The study of viruses has contributed much to our understanding of _____.
A)disease
B)genetics
C)the characteristics of living things
D)All of the above
2
Viruses always have at least _____.
A)a nucleus
B)a cell wall
C)an inner core of nucleic acid
D)None of these
3
Which of the following is not characteristic of a prokaryote?
A)Cell wall
B)DNA
C)Nucleus
D)Plasma membrane
4
Prokaryotes reproduce _____.
A)sexually
B)by binary fission
C)by conjugation
D)All of these
5
The primary source of genetic variability in prokaryotes is _____.
A)mutations
B)transduction
C)conjugation
D)transformation





To learn more about the book this website supports, please visit its Information Center.
(c)2010 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Notice.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


BiologyOnline Learning Center

Home > Chapter 20 > Pre-Test