Vibrio cholera is the cause of cholera, and has a single flagellum stretching off from one end. A characteristic of this organism should be an ability to
A. move within its liquid habitat.
B. attach to cells in the host organism's intestines.
C. transmit DNA to other bacteria.
D. avoid ingestion by cells in the immune system.
E. induce a large antibody response.
A. move within its liquid habitat.
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The Winogradsky column is a method for assessing the entire gene complement of a habitat, revealing both the biodiversity and metabolic capabilities of the microbial community at the same time
Indicate whether the statement is true or false.
If two genes are linked on the same chromosome, then ____
a. they tend to segregate away from one another during meiosis b. the more crossing-over occurs between them c. the less crossing-over occurs between them d. they tend to segregate away from one another during mitosis e. they control the same trait
What is the general term for double-membrane organelles that function in photosynthesis, storage, or pigmentation in plant and algal cells?
a. chloroplasts b. chromoplasts c. amyloplasts d. plastids e. chlorophylls
If a plant cell is placed in a hypotonic solution, the
a. entire cell will not swell or shrink. b. entire cell will shrink. c. turgor pressure will increase. d. cell wall prevents the cell from exploding. e. turgor pressure will increase, but the cell wall prevents the cell from exploding.