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Amanda
Potassium channel question?
A human embryo is double recessive for a rare mutation that causes voltage-gated potassium channels to open immediately after a membrane reaches threshold, with no delay. What would be the likely impact on action potentials, on muscle and nerve activity, and viability of this embryo?
1 AnswerBiology3 years agoQuestion about buffers in chemistry?
Using pH based arguments, explain why scientists use phosphate-based buffers instead of buffers made using acetic acid/sodium acetate when doing experiments on aqueous biological samples such as cells.
2 AnswersBiology3 years agoFind the area of the common interior of r = 4 sin(2θ) and r = 2?
1 AnswerMathematics3 years agoFind the power series representation of ln(1+x)/x?
I m not sure how to set up this problem. I know you re supposed to format it so that it looks like 1/(1-a) so can anyone explain the steps of how to set it up like that
3 AnswersMathematics3 years agoUse the comparison method to show that the integral diverges.?
The integral from 1 to 8 of: (1+sin^2(x))/sqrt(x)
4 AnswersMathematics3 years agoConcentration of primer stock problem for a bio lab?
The stock solution of each PCR primer is 100 µM. A 1:10 dilution of this stock was prepared to give the working primer stock used to set-up the PCR reaction. You used 2.5 µl of the working stock in a 50 µl PCR reaction. a) What is the concentration of the working primer stock? b) What is the final concentration of each primer in the PCR reaction? Show all units and calculations.
Biology3 years agoConcentration problem for lab?
The stock solution of each PCR primer is 100 µM. A 1:10 dilution of this stock was prepared to give the working primer stock used to set-up the PCR reaction. You used 2.5 µl of the working stock in a 50 µl PCR reaction. a) What is the concentration of the working primer stock? b) What is the final concentration of each primer in the PCR reaction? Show all units and calculations.
Biology3 years agoUse the derivatives of the function to sketch the graph y = 2xsqrt(6 − x^2).?
For the following exercises, draw a graph of the functions
without using a calculator. Be sure to notice all important
features of the graph: local maxima and minima, inflection
points, and asymptotic behavior.
1 AnswerMathematics3 years agoIn glyptal synthesis, would the use of glycerol or glycol create a harder polymer?
In a reaction using glycerol/glycol, sodium acetate, and phthalic anhydride to produce the glyptal polymer. Please explain which one would make a harder polymer and how their molecular structure ties into this.
1 AnswerChemistry3 years agoAfter a breakup is it acceptable to ask the guy who broke it off to not date for a few weeks?
Like I'd be really hurt if he did but I'm embarrassed to admit it. Would it be appropriate to ask him not to date anyone else for a few weeks to let me move on and get closure? I don't want to seem pathetic so please be honest with me so I won't do something I'll regret.
2 AnswersSingles & Dating4 years agoDetermine the correct f(x) & a and evaluate L(x)=f(a)+f'(a)(x-a) for the value (sin(.01))^2.?
Please show the work used to come to the answer.
1 AnswerMathematics4 years agoFor the value sin(3.14) compute the values given with 0.01 by deciding on the right f(x) & a & evaluating L(x)=f(a)+f'(a)(x-a)?
Please show work so I can understand how to do this problem :)
1 AnswerMathematics4 years agoRelated rate problem?
A 6-ft-tall person walks away from a 10-ft lamppost at
a constant rate of 3 ft/sec. What is the rate that the tip of the shadow moves away from the pole when the person is
10 ft away from the pole?
Please explain the steps so I can understand how to do this problem :)
1 AnswerMathematics4 years agoIf f(x) = x +sqrt(x) and a=2 then find (f^-1)'(a)?
1 AnswerMathematics4 years ago