Bacterial transposons often carry genes for which feature?

a. formation of flagella
b. formation of antibiotic resistance
c. formation of the sex pilus
d. formation of a capsule


Ans: b. formation of antibiotic resistance

Biology & Microbiology

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Logistic population growth describes growth without limitation

Indicate whether the statement is true or false.

Biology & Microbiology

Scientists are documenting the level of radiation in ____ forests along the western coasts of North America because

they tend to take up and concentrate radioactive material, making it easier to detect.

a. aspen b. alder c. Douglas fir d. cedar e. kelp

Biology & Microbiology

Most allergy medicines contain antihistamines that block the actions of histamine. These drugs reduce cold symptoms by directly

A. stimulating components of the immune system through the release of cytokines. B. stimulating the production of specific antibodies. C. blocking or reducing the inflammation response in mucous membranes. D. recruiting macrophages to the nasal epithelium. E. lysing virus-infected cells and preventing further propagation of the pathogen.

Biology & Microbiology

Hyphae of a basidiomycete’s primary mycelium consist of ____ cells

a. prokaryotic b. dikaryotic c. coenocytic d. homothallic e. monokaryotic

Biology & Microbiology