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stew
Questions and answers by visitors named
stew
Questions (29)
1. The genes for mohogany eyes and ebony body are approximately 25 map units apart on chromosome III in Drosophila. Assume that
3 answers
893 views
3. Assume that there are 12 map units between two loci in the mouse and that you are able to microscopically observe meiotic
1 answer
1,330 views
Assume that a cross is made between AaBb and aabb plants, and the offspring occur in the following numbers: 106 AaBb, 48 Aabb,
4 answers
1,415 views
3. Assume that there are 12 map units between two loci in the mouse and that you are able to microscopically observe meiotic
1 answer
780 views
Given that loci A and B in Drosophila are sex-linked and 20 map units apart, what phenotypic frequencies would you expect in
2 answers
1,279 views
need help with these genetics problems. please help with what you can. thanks:
Given that loci A and B in Drosophila are
4 answers
666 views
please explain how to get these answers (answers provided):
1. If this cell were a muscle cell (myocyte), how many molecules of
3 answers
4,533 views
Calculate the weight of the buffers you will use to make the buffers for Part A for all the buffer possibilities listed under
17 answers
4,139 views
Is CAPS an acid or base? If it is an acid, what is its base? If it is a base, what is its acid?
Also, is Tricine an acid or base?
2 answers
568 views
how do I convert 0.058 M to mL?
Note: M is molarity(moles/Liter) also the molecular weight for the equation is 60 g/mol Thank
4 answers
486 views
How do I convert 0.058 M to mL?
The answer is 3.34 mL. How do I get that? the molecular weight is 60 g/mol and the density is
1 answer
354 views
How do I solve this?
How many grams of solid NaOH are required to prepare 200 mL of a 0.05 M solution? What will be the
2 answers
778 views
How do I take the antilog of -0.05?
4 answers
2,184 views
Assayed for LDH activity were 5 microliters of a sample that was diluted 6 to 1. The activity in the reaction vessel, which has
1 answer
1,212 views
what is the difference between a percent saturated solution of ammonium sulfate and a percent w/v solution of ammonium sulfate?
4 answers
2,226 views
An enzyme sample contains 24 mg protein/mL. Of this sample, 20 microliters in a standard incubation volume of 0.1 mL catalyzed
2 answers
522 views
An enzyme sample contains 24 mg protein/mL. Of this sample, 20
microliters in a standard incubation volume of 0.1 mL catalyzed
2 answers
607 views
how do i use excel to plot a graph then find x from the slope of a line? y=mx+b. I want to find X:
X=y-b/m. How do i do this
3 answers
988 views
An enzyme sample contains 24 mg protein/mL. Of this sample, 20
microliters in a standard incubation volume of 0.1 mL catalyzed
1 answer
432 views
I am studying for a midterm. Do you know this answer?
what reaction does LDH actually catalize and why is that reaction
1 answer
371 views
what does the calibration curve tell you about the spectrophotometer?
1 answer
490 views
when converting micromoles to moles:
the way i do it is this way: 1 micromole X 1/10^-6 = 1X10^6 mole. lately i have been seeing
1 answer
394 views
I am taking biochemistry. I study for my tests, but I still can't do better than a D. After I turn my tests in, I feel confident
2 answers
556 views
I need to solve for k'eq:
-13.8= -2.479 ln k'eq -11.321= ln k'eq How do I get the ln out of the way in order to solve for k'eq?
1 answer
358 views
any help with any of these questions is appreciated.
Why was lysozyme pipetted with the Drummond micropipetter? Why can we
1 answer
319 views
A Nation Apart Identify the thesis statement in the article A Nation Apart. What strategies does the author use to formulate his
7 answers
667 views
An ice skater rotating around a vertical axis increases in angular velocityfrom 450degrees/s to 610degrees/s in 2.3 seconds.
4 answers
792 views
A 1500 wrecking ball hangs from a 16 -long cable. The ball is pulled back until the cable makes an angle of 23.0 with the
2 answers
1,323 views
how many 12" tiles does it take to cover an area of 10 square feet?
1 answer
351 views
Answers (15)
number 2: numerator of third product term should be fact(n), not fact(k)
how are native americans still discriminated against
I am trying to find x, which is the protein in mg. I know why will represent absorption. What will i put for m and b for my values? I know one axis is y for absorbance, i don't know what other values to put in for the rest of the graph.
Note: a Unit is ((ΔA/Δmin)/(6220 M -1 cm -1)) X 106 μM/M X 3 X 10-3 L
by the way, this question is different from the previous question i asked.
sorry, just realized i left the density out. The density is 1.049 g/mL. This should help. Thanks.
I have to use molecular weight (60 g/mol) to convert 0.058 M (58nM) to mL. my instructor wrote (M to moles to grams to mL). The answer is 3.34mL I just need to know how to get there.
okay. Here is the first acid and base worked out. Acetate(base): .3797 grams Acetic acid(acid): .1674 grams Are these right? If they are, i can finish the rest. Thanks.
I noticed some mistakes in my conversions. The answer I got for acetate was 37.97 grams. For CAPS, i got.112 grams. Are these correct? Thanks.
By the way, I have been using a pH of 7 for all of them.
Okay, I have worked out the first two. Am I doing them right? For acetate, I got 27.9 grams. For CAPS, I got 5.08 grams. Am I doing these right?
okay, let me just stick to the pre-lab question using the table. Here is the pre-lab question: Calculate the weight of the buffers you will use to make the buffers for part A for all the buffer possibilities listed under procedures in part A, stp i. In
these are pre-lab questions, so i haven't been given a ph yet. These are questions due before lab starts.
okay, this is what I have so far and now don't know how to finish. I used TRIS. pH=8.30+log(121.1/157.6) pH=8.19 Note: TRIS (Trizma base) MW= 121.1 TRIS-HCL MW= 157.6 (I hope I am using the correct things) After I got the pH, I got stuck on how to finish
which buffer do I choose? There are instructions above the table does this have anything to do with my choice for the problem i am working out, or do I just pick whatever one I want and do the math? Above the table it states, Make two buffers starting with
