Medical Quiz

Genetics: Viruses and Bacteria Quiz


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Which of these is characteristic of both viruses and bacteria?

A. They get their energy from their environment.

B. They can reproduce on their own.

C. They can form crystals and become dormant.

D. They contain proteins and nucleic acids.


Which statement is true about viruses?

A. Viruses can eat and metabolize food.

B. Viruses can reproduce only using a host cell.

C. Viruses can reproduce on their own at any time.

D. Viruses contain DNA, so they are alive.


Transformation occurs when ________________.

A. None of these.

B. a virus injects DNA into the bacterium.

C. a plasmid is transferred from one bacteria to another.

D. bacteria take up DNA from the environment.


Where are Eubacteria found?

A. in extremely hot environments

B. in hypersalines lakes

C. deep in the swamp muds

D. almost anywhere


Some bacteria move by using a long, whip-like structure called a(n) ____________________

A. tail

B. cillia

C. organs

D. flagellum


What is transformation (with regard to bacteria)?

A. The bacteria mutates

B. A plasmid from one bacterium becomes incorporated into another

C. The bacterium puts on it’s cape and becomes a superhero

D. The bacterium recieves enzymes from another bacterium.


Bacteria that cause disease are called

A. microbes

B. pathogens

C. decomposers

D. autotrophs


Which viral cycle takes the longest to show symptoms?

A. Lysogenic

B. Lytic


What is the first step to both cycles?

A. The virus attaches to a host

B. the virus injects genetic material

C. the host gets sick

D. the cell is destroyed


Bacteria that are decomposers ….

A. make their own food.

B. feed on other organisms

C. feed on dead organisms

D. none of these


The use of what modern technology has cause the rise in resistant bacteria

A. vaccines

B. antibiotics

C. fertilizers

D. solar panels


Unlike the cells of eukaryotes, the cells of bacteria do not have

A. a nucleus

B. cell walls

C. flagellum

D. cells


One important way to control the spread of viruses in through

A. the use of vaccines

B. drinking a lot of tea

C. the use of other types of bacteria

D. the use of antibiotics


The term “antibiotic resistance” refers to bacteria that 

A. are resistant to a vaccine.

B. survive in the presence of an antibiotic.

C. are weakened and destroyed by antibiotics.

D. are dead or altered.


Bacteria can form ________ to protect itself from harsh conditions.

A. endospores

B. armor

C. spores

D. mushrooms


Conjugation is important because it

A. increases genetic variation

B. creates more bacteria

C. is bacterial sexual reproduction

D. the joining of 2 bacteria into 1 super-bacteria


The first living organism probably belonged to which kingdom?

A. Archaebacteria

B. Fungus

C. Plant

D. Animal


How does the process of binary fission work in the asexual reproduction of bacteria?

A. Two cells join to become one larger cell. 

B. One cell splits into two cells with identical DNA. 

C. DNA material from the environment is added to the cell.

D. Bacteria can only reproduce via sexual reproduction, not asexual reproduction.


A plasmid is

A. A type of bacteria

B. a type of archaea

C. A small ring of DNA

D. A virus


Which of the following is true for both bacteria and viruses?

A. both contain genetic material

B. can be killed using antibiotics

C. have a cell membrane

D. have a protein coat


Reasons that viruses are considered to be nonliving is because

A. They are not cellular

B. They cannot reproduce on their own

C. They cannot make proteins

D. all of the above


Conjugation occurs when ________________.

A. None of these.

B. a virus injects DNA into the bacterium.

C. a plasmid is transferred from one bacteria to another.

D. bacteria take up DNA from the environment.




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