Which component of the electron-transport chain is required to pair electrons with molecular oxygen?
Group of answer choices
A. ubiquinone
B. cytochrome c
C. cytochrome c oxidase
D. NADH dehydrogenase
E. cytochrome b-c1 complex
Answer: C. cytochrome c oxidase
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Drug addiction
a. is a form of chemical dependence. b. may result from habituation and increased tolerance. c. may result in deterioration of personal and professional relationships. d. may result in risk taking to obtain or use the drug e. includes all of these
Recount the evidence that Dolly the sheep was indeed the product of cloning, or cell fusion
What will be an ideal response?
A spine is a modified branch
____________________ Indicate whether the statement is true or false.
Gene silencing in RNA interference blocks an undesirable product by
a. blocking RNA polymerase from binding the DNA. b. binding siRNAs to mRNA transcripts, marking the mRNA for destruction. c. blocking transcription. d. blocking DNA replication.