Which of the following scenarios will most likely trigger an action potential? Select all correct choices
A. multiple EPSPs arriving quickly at a single
synapse (temporal summation)
B. single EPSPs arriving simultaneously at
two or more different synapses (spatial
summation)
C. an EPSP and an IPSP arriving
simultaneously (cancellation)
A,B
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The glucose molecule has a large quantity of energy in its _____
A) Câ€"H bonds B) Câ€"N bonds C) number of oxygen atoms D) polar structure
Which of the following events occur during anaphase I of meiosis?
A. The chromosome number is doubled during this phase of meiosis. B. In females, the two X chromosomes remain together. C. In males, the X chromosome is segregated from the Y chromosome. D. The centromeres of the chromosomes divide. E. Homologous chromosomes move as one unit.
Which of the following cell features is absent
in a bacterial cell?
a. plasma membrane. b. cytoplasm. c. nucleoid. d. nucleus. e. DNA
What are the regions where DNA-binding proteins can make direct contact with exposed nucleotides?
What will be an ideal response?