Homework Help

Hi, I've got this question and I'm not so sure about the answer. It is taken from Genetic Analysis: An Integrated Approach, chapter 15: A muscle enzyme called ME1 is produced by transcription and translation of the ME1 gene in several muscles during mouse development, including heart muscle, in a highly regulated manner. Production of ME1 appears to be turned on and turned off at different times during development. To test the possible role of enhancers and silencers in ME1 transcription, a biologist creates a recombinant genetic system that fuses the ME1 promoter, along with DNA that is upstream of the promoter, to the bacterial lacZ(B-galactosidase) gene. The lacZ…

Hi. I am currently in Grade 7, and am doing an inquiry project in math. Our current math subject is probability. We were told to pick a question, and using multiple subquestions, calculate the theoretical probability of the event. Me and my partner are big on video games, so we took a classic theme, Majora's Mask. In the game, the moon is going to crash onto the planet and destroy everything. Majora's moon is rather small, so we decided we would use the real moon in our question: If the moon struck the Earth at 3,683km/h, what is the probability of surviving? We have lots of the little questions down, like: What is the probability of the moon knocking …

Hi, can anyone advise me on how to approach this question: what's the metabolic rate of a 70kg man when his VO2 is 600l/h, EE 20 kJ/l and exhaled O2 is 2,5% less than the atmospheric. many thanks

Question: A nuclear power plant is possibly leaking contaminants into a lake near it. Determine what types of analysis are needed in this situation. (More than one can be used) Four Types of Analysis: Characterization, Fundamental, Quantitative, Qualitative. My Take Quantitative, Qualitative, and Characterization analysis. -Quantitative analysis for see how much of the contaminant is in the water. -Qualitative to determine what substance the contaminant is. -Characterization to determine the properties of the contaminant and what it can do to humans. Fundamental analysis isn't needed, as we aren't trying to understand a theory behind a type of…

Electric field (E) is in the positive z-direction, magnetic field (B) is in the positive Y-direction and the velocity of the proton is in the positive X-direction. What is the direction of the electric force? magnetic force? I think the electriic force willl be on the z-direction and the magnetic force will be on the x-direction but i think i'm wrong :/

Question No 1: In oral cavity, carbohydrate digestion is carried out by alpha-amylase enzyme. Please explain that upon digestion, the products which are produced would be same or different? In both cases please also elaborate their structures. To attempt this question please keep starch structure in mind. Question 2: Characteristic through which land animals protect themselves from dehydration is called "Anhydrobiosis". In summer land animals love to eat carbohydrate diet as compared to proteins diet. Same is true about you. In winter you like "dry fruits", rich of proteins while in summer you probably like diet which is rich of carbohydrates. Why it so? How carboh…

Can you please check my work? thanks

In my biochemical engineering book, in the section regarding cellular oxygen transfer rate from the media to the cells, the authors introduce three equations (see the attached photo for equations). In presenting these equations, the book states that, "this is the most accurate way to measure the mass transfer coefficient (kLa) in a fermenter." However, the authors do not explain in the book how to actually go about measuring the kLa using these equations. I was wondering if anyone with knowledge on this subject could provide further information regarding the determination of kLa using these equations, it would be a big help.

I thought this simple haloalkane was supposed to be 3,5-dichloro-2-methylhexane, but my professor said it was 2,4-dichloro-5-methylhexane, (alphabetical ordering?) How come, shouldn't I simply assign the smallest possible numbers to alll of the supstituents?

In millikan oil drop experiment, is terminal velocity same for all the drops? I am doing the experiment and i got different velocities for the drop, should i calculate for the average velocity? I need it to calculate for the charge.

There is wording in my textbook that is frustrating me, or it is me who does not understand the concept. After explaining the centripetal acceleration at the equator but not at the poles, my textbook says, "for a spherically symmetric earth the acceleration due to gravity should be about 0.03 m/s^2 less at the equator than at the poles". The textbook says it this way multiple times, so I know it wasn't a typo. Shouldn't it be due to gravity and the centripetal acceleration? Or shouldn't it have said "due to the apparent g"?

Question. Name the law given and verify it using a truth table. X+ X’.Y=X+Y X | Y | X’ | X’.Y | X+X’.Y | X+Y 0 | 0 | 1 | 0 | 0 | 0 0 | 1 | 1 | 1 | 1 | 1 1 | 0 | 0 | 0 | 1 | 1 1 | 1 | 0 | 0 | 1 | 1 Prove algebraically that X + X’Y = X + Y. L.H.S. = X + X’Y = X.1 + X’Y (X . 1 = X property of 0 and 1) = X(1 + Y) + X’Y (1 + Y = 1 property of 0 and 1) = X + XY + X’Y = X + Y(X + X’) = X + Y.1 …

Imagine that light did not have a constant speed, but behaved in the manner expected from experience. Namely, if the source of the light is rushing toward you, the light will approach you faster; if the source is rushing away from you, the light will approach you slower. This is incorrect, of course, but it's worth investigating the consequences of a non-constant speed of light because the failure to observe those consequences is evidence that the speed of light is constant. With that backdrop, consider a binary star system situated a very large distance L from Earth. Let the angular velocity of the smaller star be ω, as it orbits the larger star in a circle of radius r. …

Imagine that you have a multistage rocket in which the first stage blasts off from the ground at v1, the second stage blasts off later with speed v2 relative to the first stage, and the third stage blasts off later still with speed v3 relative to the second stage. A From the perspective of someone stationary on the ground, what is the speed of the second stage? (For ease, assume you are working in units for which c=1.) a) v2 b) v1+v2 c) (v1+v2)/(1+v1v2) d) (v1−v2)/(1−v1v2) B From the perspective of someone stationary on the ground, what is the speed of the third stage? (For ease, assume you are working in units for which c=1). a) (v1−v2−v3+v1v2v3)/(1−v1v2+v1v3+v2v…

A body falls freely from a height 'h' . Find the time taken to reach the ground and the velocity which body hits the ground??

The actual question implies that this is possible, but I am just curious how. The rows in R2 are only in two dimensions. So geographically, this seems to mean that the point where the lines cross would still be in R2, right? Or am I misunderstanding what it means to "be in R3"?

After receiving amazing help last time from Swansont, I really hope someone can help me again! The question is the following: Janus and Epimetheus are moons of Saturn. The difference in the radius of their circular orbit is 50 km. De radius of the inner moon is 2.51 times the radius of Saturn. Calculate after how many orbits the inner moon passes the outer moon. Below is my sketch of the question. Can someone tell me if I'm going about this the right way? Can I just call the radius of Saturn x? Or do I actually have to look up the radius of Saturn? Or am I approaching this completely wrong? Anyway, after some searching I think I need to use the propor…

For question (b), how do you find the matrix? Normally they will give you the matrix and find the transformation instead of finding the matrix right? Are there any specific formula for this ? Thanks.

Organic Chemistry Edit ★ Anyone really good at organic chemistry especially dying?Edit I need to come up with structures from the data given. I really don't know where to start and would really appreciate assistance. So I need to (1) draw the product(s) for each set of reactants listed below (2) note and explain any structural and color differences between the dyes Here's the information: Student Diazo Component Coupling Agent 1 Sulfanilic acid Resorcinol 2 p-Nitroaniline Resorcinol 3 Sulfanilic acid Phenol 4 p-Nitroanilin…

Hello For math, we're making a dissertation about Pierre de Fermat's life, his small theorem (extended information: use of the theorem, proof, ...) and other accomplishments in the world of mathematics (short information: what are his theorems, domains, and if are they proven). Now, I still need to put a title on it, as it were for a thesis. I can't seem to find an appropriate, nice title, though... Could someone help me? I think Fermat's a bit too unknown for who he's been in the mathematical world, so perhaps this could be an element in the title? (A subtitle explaining really short the title can also be used) Thanks! Function

Hi all! I'm not just looking for answers, as I'm trying to get a head start on a pretty intense course-load coming my way. I will be taking a 3 week intro Chem course starting May 7th, and this is not my specialty, but I'd like to do well in the course and try to have fun . I have gone through the first unit and it hasn't been too difficult until I got to the end of it with some that made my brain hurt a bit , and I'm hoping that I could get a little help on understanding these, so here we go. This one will likely be super easy for you guys lol: 1.) A house has an area of 195m2 what is its area in: a) km2 -I will address this one first. So what I did wa…

So I did #4 correctly because I predicted that they would mix and produce PbCrO4 and NaNO3. So that means that an insoluble yellow solid and a soluble white solid would be produced. So I picked A - Yellow solid and colorless solution, which is correct. But for #5 and 6, I don't understand how to use the amount of moles to determine which is produced. I made the balanced equation for 5, but the coefficients for each product and reactant are 1, so I don't see how the moles change.

Hello! I have some questions regarding Hershey and Chase experiment: 1.- What do you reckon Al Hershey and Martha Chase would have seen in their analyses instead if they had forgotten to turn on the kitchen blender? 2.-Would they have been as successful if they had used radioactive carbon and radioactive hydrogen for the labeling instead? 3.-Why do you think that scientists found the Hershey-Chase experiment more convincing than Oswald Avery's experiment as proof that DNA carried the genetic information? Thanks in advance for your help! Cheers!

I need some help being pointed in the right direction as each part of the question follows on to the next. I think I understand double integration. For this I have identified that the fin has vertices of: (1,1), (2,0), (5.9) the next step is where I am having difficulty. I do a double integration using Y first in order to keep it simple. So i integrate from: y=(2-x)^2 to y=2-(y)^1/2 I then integrate from: x=1 to x=5 I don't know if this is correct or if I'm having problems with finding the center of mass because the center of mass is way outside the fin. Am I having trouble with finding the center of maths or have I got the double integration wrong…

A student determined the density of an unknown solid metal. He partly filled a pre-massed flask of known volume with solid and found the mass. Keeping the metal in place he then added water to fill the remaining volume of the flask. He used his data and correct calculations to find out the metal had a density of 6.95g/mL. The teacher let him know that the actual density of the metal was 7.86g/mL. For each of the following, indicate if this would be a valid explanation for the difference in the experimental and actual density. a. The irregular shape of the metal pieces caused air pockets to be trapped between those spaces. b. The metal was wet when it was first placed …