How are adjacent nucleotides on a strand of DNA connected to each other?

a. by a hydrophobic interaction
b. by a phosphodiester bond
c. by a peptide bond
d. by a hydrogen bond


Answer: b. by a phosphodiester bond

Biology & Microbiology

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Which would be TRUE if a metabolic poison were to completely inhibit the function of mitochondrial ATP synthase?

A. The pH difference across the inner mitochondrial membrane would decrease. B. The pH difference across the inner mitochondrial membrane would increase. C. ATP synthesis would increase. D. Oxygen consumption would decrease. E. The accumulation of NADH would increase.

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Which tissue type is a sheet-like tissue with

one surface always facing a body cavity or an external environment?

a. dense connective b. muscular c. epithelial d. nervous e. loose connective

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Most true fungi send out cellular filaments

called a. mycelia. b. hyphae. c. mycorrhizae. d. stolons. e. rhizoids.

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________ is an example of an element

A) Water B) Carbon C) Glucose D) Salt

Biology & Microbiology