Question:

15. A researcher claims that genetic variation provides organisms with the ability to survive and reproduce in different environ

15. A researcher claims that genetic variation provides organisms with the ability to survive and reproduce
in different environments. To support the claim, the researcher makes the following observation: bacteria
that contain plasmids (small DNA molecules) are resistant to a wider range of antibiotics than are
bacteria that contain no plasmids.
Which of the following statements best establishes a connection between the observation and the
researcher's claim?
a. Some antibiotics inhibit the synthesis of bacterial cell walls.
b. Some antibiotics inhibit protein synthesis in bacteria cells.
c. Some plasmids cannot exist in a bacterial cell with certain other plasmids.
d. Some plasmids contain antibiotic resistance genes.

15. A researcher claims that genetic variation provides organisms with the ability to survive and reproduce in different environments. To support the claim, the researcher makes the following observation: bacteria that contain plasmids (small DNA molecules) are resistant to a wider range of antibiotics than are bacteria that contain no plasmids. Which of the following statements best establishes a connection between the observation and the researcher's claim? a. Some antibiotics inhibit the synthesis of bacterial cell walls. b. Some antibiotics inhibit protein synthesis in bacteria cells. c. Some plasmids cannot exist in a bacterial cell with certain other plasmids. d. Some plasmids contain antibiotic resistance genes.

Answer

11/08/2021 09:49 PM
Ans-D Some plasmids contain antibiotic
resistance genes.
Antibiotic resistance genes were not
common on plasmids before the
introduction of antibiotics as medicines.
Today, however, genes that provide
protection against different
antibiotics as well as resistance to for
example heavy metals like copper and
silver are commonly found on the same
plasmids.

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11/08/2021 09:49 PM Ans-D Some plasmids contain antibiotic resistance genes. Antibiotic resist... Download the app for the rest