QUESTION 19 • Which of the following is a trait shared by prokaryotes and eukary

Question

QUESTION 19

• Which of the following is a trait shared by prokaryotes and eukaryotes, but not by viruses?

. . . nucleic acids used to store hereditary information

. . . complex and ordered arrangements of macromolecules

. . . the capacity to evolve

. . . the ability to process energy through metabolic reactions

• .

QUESTION 20

• Which of the following is NOT a difference between Archaea and Bacteria?

. . . presence of peptidoglycan

. . . inhibition by the antibiotics chloramphenicol and streptomycin

. . . presence of histones in DNA

. . . presence of introns in genes

. . . lack of a nucleus

• .

QUESTION 21

• It is thought that many protists evolved from a symbiotic relationship that formed when a heterotrophic eukaryote engulfed a prokaryote. This process is called:

. . . commensalism

. . . transduction

. . . conjugation

. . . endosymbiosis

. . . transformation

Explanation / Answer

19.  the ability to process energy through metabolic reactions.

20.lack of nucleus

21. endosymbiosis.

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