Horizontal gene transfer involves the exchange of genetic material between organisms not in a parent-offspring relationship. It is common among prokaryotes (single-celled organisms, such as the bacteria Carnobacterium viridans and Lactococcus lactis). The process can have the effect of increasing bacterial resistance to antibiotics; as such, an understanding of how to prevent horizontal gene transfer might result in the mitigation of dangerous pathogens (organisms that cause disease).
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Verbal·Craft and Structure·Text Structure and Purpose
mediumWhich choice best describes the overall structure of the text?
A
It provides a history of research into a biological process and suggests a direction for further investigation.
B
It explains why an organism poses a threat and then suggests how that threat might be avoided.
C
It depicts two organisms and presents their similarities and differences.
D
It describes a biological process and explains why researching it is important.