The enzyme that creates ATP during electron transport is called:
A) ATP creatase. B) ATP synthase.
C) ATP polymerase. D) ADP phosphotransferase.
Answer: B
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Failure to recover a specific band in a gel made after PCR can be attributed to:
A. inappropriate annealing of primers to the DNA template. B. inappropriate design of gene specific primers. C. inappropriate numbers of cycles for amplification. D. None of the answer options are correct. E. All of the answer options are correct.
Disruption of neural signaling can produce profound changes in mood and behavior. Cocaine exerts its effects by
A. blocking norepinephrine and dopamine reuptake from synapses. B. blocking serotonin reuptake from synapses. C. preventing neurotransmitter vesicle fusion with presynaptic neuron membranes. D. blocking the enzyme acetylcholinesterase. E. binding to the GABA receptor to enhance inhibitory neurotransmission.
ABC-type ATPases that inhibit the effectiveness of antitumor drugs by transporting the drugs out of tumor cells are known as
A) multidrug resistance (MDR) transporters. B) Na+-drug antiporters. C) the cystic fibrosis transmembrane conductance regulator (CFTR). D) porins. E) None of the above; no such transporter has been identified in eukaryotes.
Translation in bacterial and eukaryotic cells has many similarities, but there are also several key differences. Which of the following is one of those differences that is seen in eukaryotes?
A) Eukartyotic mRNA contains a Shine—Dalgarno sequence that increases the efficiency of translation. B) Eukaryotes only require one release factor that recognizes all three stop codons. C) Translation and transcription are coupled. D) Eukaryotes use the 5? G-cap and Poly-A-tail on their mRNAs to initiate translation. E) Eukaryotic ribosomes are smaller with fewer proteins and RNA molecules.