Endospores are dormant and require no nutrient or energy.

a. true
b. false


Ans: a. true

Biology & Microbiology

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Chromatids separate during

(a) prophase. (b) telophase. (c) cytokinesis. (d) anaphase.

Biology & Microbiology

Which of the following is true of the topoisomerases found in bacteria?

A. Type I topoisomerases introduce single-stranded breaks and as a result change the linking number by 1. B. Type I topoisomerases introduce single-stranded breaks and as a result change the linking number by 2. C. Type II topoisomerases introduce single-stranded breaks and as a result change the linking number by 2. D. Type II topoisomerases introduce double-stranded breaks and as a result change the linking number by 1. E. Type I topoisomerases are the only category that can introduce negative supercoils.

Biology & Microbiology

Which of the following terms is most closely related to genetic complementation?

A. Reverse transcription B. Phenotypic rescue C. Naked DNA D. SOS response

Biology & Microbiology

Which one of the following correctly describes the order of stem cells from the lowest degree of flexibility to the highest degree of flexibility?

A) multipotent < unipotent < pluripotent < totipotent B) unipotent < multipotent < totipotent < pluripotent C) unipotent < multipotent < pluripotent < totipotent D) pluripotent < unipotent < totipotent < multipotent

Biology & Microbiology