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Softa [21]
3 years ago
9

"Helmholtz’s study of nerves in the frog showed that A. there was specificity in sensory nerves B. there was specificity in moto

r nerves C.nerves conducted on an all or none basis D. the speed of neural transmission was measureable"
Biology
1 answer:
tresset_1 [31]3 years ago
8 0

Answer: The answer is D; The speed of neural transmission is measurable

Explanation:

Helmholtz constructed an apparatus specially to measure short time intervals of the order of ten-thousandths of a second, Helmholtz was able, in an elegant experiment published in 1850, to measure precisely the speed of conduction of the nerve signals in the motor nerve of the frog's leg.

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7 0
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A different DNA ladder from NEB (Cat #N3200L) comes as 500 uL of a 1000 ug/mL solution and is not pre-mixed with the 6 X DNA loa
JulijaS [17]

Answer:

4 ul Loading Buffer + 19.70 ul dH2O + 0.30 ul DNA Ladder

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And load half of that solution (12 ul) on the gel.

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