Question

1. Which of the following structures makes cyanobacteria optimal symbionts for eukaryotic organisms needing oxygen and nutrients?
A.
chloroplasts

B.
plasmids

C.
thylakoids

D.
capsules

2.In the absence of meiosis and s3xual reproduction, what general process allows genetic recombination among prokaryotes?

A.
evolution

B.
mutation

C.
horizontal gene transfer

D.
endospore formation

3.Which of the following “environments” could provide the BEST chance of survival via symbiosis to a photoautotroph bacterial species?

A.
the intestine of a cow

B.
the eye of a flashlight fish living in the deep ocean

C.
a colony of fungi near a pond

D.
the interior of an ant’s nest

4.Which of the following is a feature entirely shared by the domains of bacteria and archaea, indicating their common prokaryotic origin?

A.
living in colonies

B.
autotrophy

C.
circular chromosomes

D.
being extremophiles


5.Which statement about prokaryotes is true?

A.
The vast majority of prokaryotes are pathogenic.

B.
Prokaryotes are widely used for bioremediation.

C.
It is important to try and rid your body of all prokaryotes.

D.
Prokaryotes have no industrial uses.

Answer 1

Answer:

1) B. plasmids

2) C. Horizontal gene transfer

3) C. a colony of fungi near a pond

4) C. circular chromosomes

5) B. Prokaryotes are widely used for bioremediation