Which of the following microbes produces a protein that kills a variety of insect pests?

A. Pseudomonas
B. Haemophilus influenzae
C. Bacillus thuringiensis
D. Thermus aquaticus
E. Plasmodium falciparum


Answer: C

Biology & Microbiology

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Natural colonization can happen in all of the following ways except 

A. a flock of birds gets blown off course. B. a bird eats a fruit on the mainland and defecates the seed on an island. C. people plant new species on an island. D. lowered sea levels connect two areas previously isolated. E. birds pick up seeds on their feet while wading in mud and drop them elsewhere.

Biology & Microbiology

When histones are rearranged to control gene access, it is called ____

a. transcription b. chromatin remodeling

c. DNA condensation d. remodeling complex formation e. acetylation

Biology & Microbiology

A hydrogen bond between the side groups (R groups) of two different monomer subunits in a single

strand of a protein would be considered part of the ____ structure of the protein.

a. primary b. secondary c. tertiary d. quaternary e. linear

Biology & Microbiology

Which type of angiosperm typically has parallel leaf veins and a fibrous root system?

A. Ferns B. Dicot C. Conifer D. Monocot

Biology & Microbiology