No cases of variant Creutzfeldt-Jakob syndrome linked to eating infected cows have occurred in the United States.
Answer the following statement true (T) or false (F)
False
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Summation of EPSPs and IPSPs occurs at the _____ of the neuron
a. dendrites b. trigger zone c. nodes of Ranvier d. axon terminals
In a mollusk, which of the following acts like a kidney by carrying out excretion?
a. metanephridia b. chaetae c. ctenidia d. radula
The result of the process shown in green in the lower half of the figure is _____
1.a positively charged ion
2.a covalent molecule
3.a negatively charged ion
4.a negatively charged molecule
Eukaryotic gene regulation differs from prokaryotic gene regulation in that:
A: transcription and translation occur at the same location in eukaryotes, but at different locations in prokaryotes. B: transcription of eukaryotic genes is affected by DNA methylation and modification of chromatin structure. C: many eukaryotic genes are organized as operons and prokaryotic genes are not. D: there is no negative control in eukaryotes. E :there is no positive control in prokaryotes.