Select the biosafety level described by the conditions of the following example:

> A microbiology student is working on a project under the following conditions:
o Work is conducted on a standard laboratory table or bench.o A nonpathogenic laboratory strain of E. coli is being used.o Minimal PPE, such as a lab coat, gloves, and eye protection might be worn but are not necessary.

A) BSL-2
B) BSL-1
C) BSL-3
D) BSL-4


B) BSL-1

Biology & Microbiology

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In the black bread mold Rhizopus stolonifer, the two different mating types yield

a. a gametangium. b. a zygosporangium. c. two diploid cells. d. two haploid cells.

Biology & Microbiology

Genes at one locus that affect the expression of genes at a different locus are said to be

A. epistatic. B. linked. C. codominant. D. continuous. E. alleles.

Biology & Microbiology

The absence of necessary receptors is the basis of the defense against microbial invasion known as (natural/innate/species) resistance

What will be an ideal response?

Biology & Microbiology

In mitosis, the chromosomes move to opposite poles during

a. anaphase. b. metaphase. c. prophase. d. telophase

Biology & Microbiology