The most serious consequence of rubella is

A. encephalitis.
B. meningitis.
C. deafness.
D. birth defects.


D.

Biology & Microbiology

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At which stage of a basidiomycete's life cycle would reproduction be halted if an enzyme that prevented the fusion of hyphae was introduced?

A) meiosis B) fertilization C) karyogamy D) plasmogamy E) germination

Biology & Microbiology

The beginning of anaphase is indicated by which of the following?

A) Chromatids lose their kinetochores. B) Cohesin attaches the sister chromatids to each other. C) Cohesin is cleaved enzymatically. D) Spindle microtubules begin to polymerize.

Biology & Microbiology

Consider organisms that are eukaryotic, are found in both unicellular and multicellular forms, may resemble plants but are not photosynthetic, have chitin in their cell walls, and absorb organic nutrients from decomposing material in the environment. These organisms would be classified as which of the following types of organisms?

a. archaea b. bacteria c. protozoa d. fungi

Biology & Microbiology

Which of the following can be used to reduce microbes in air?

A. HEPA filters B. ethylene oxide C. ultraviolet light D. both HEPA filters and ultraviolet light E. both ethylene oxide and ultraviolet light

Biology & Microbiology