The concentration of agarose gel affects the resolution of dna separation. for a standard agarose gel electrophoresis, a 0.8% gives good separation or resolution of large 5–10kb dna fragments, while 2% gel gives good resolution for small 0.2-1kb fragments. 1% gels is often used for a standard electrophoresis. if you have very similar sized dna molecules that are running too close together on an agarose gel, what solution would you apply to resolve this issue?

Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).