Which of the following viruses is a DNA virus that infects liver cells?
A) hepadnaviruses
B) herpesviruses
C) polyomaviruses
D) poxviruses
E) adenoviruses
A
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Three hypothetical phosphorylated compounds (A, B, and C) are involved in energy metabolism. Standard free energies of hydrolysis for A = 13.1 kcal/mol, for B = -2.7 kcal/mol, and for C = 6.7 kcal/mol. What is the sequence in which these molecules could most exergonically phosphorylate?
A) A, B, C B) A, C, B C) B, C, A D) C, B, A E) C followed by A or B
The transport of what molecules or particles across the thylakoid membrane power the production of ATP?
a. electrons b. hydrogen ions c. oxygen d. carbon dioxide e. phosphate ions
What is the result of diploid megasporocyte meiosis?
a. four eggs and two female gametophytes. b. eight diploid microspores c. three small and one large haploid megaspores d. three seeds and one haploid zygote.
In a polymer of nucleotides, how does one
nucleotide attach to another?
a. the base of one nucleotide is attached to the base of the next b. the base of one nucletide it attached to the sugar of the next c. the sugar of one nucleotide is attached to the sugar of the next d. the phosphate group of one nucleotide is attached to the base of the next e. the phosphate group of one nucleotide is attached to the sugar of the next