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I have a 1000 base pair DNA fragment, which agarose concentration will give me the best resolution and separation of the fragment?

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What color does 0.1 M hcl change to when Congo red is added

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Which of the following statements is FALSE about evolution? organisms evolve on purpose mutations are the ultimate source of variation in a population populations NOT individuals evolve populations change over time

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What is the difference between contracting poliomyelitis and being infected with poliovirus?

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Learned helplessness in the elderly often takes the form of a lack of motivation and activity. depression and suicide attempts. extreme agitation. none of these are correct.

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2-39. The three concurrent forces acting on the post produce a resultant force $F_R = 0$. If $F_2 = F_1$, and $F_1$ is to be 90° from $F_2$ as shown, determine the required magnitude of $F_3$ expressed in terms of $F_1$ and the angle $\theta$.

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Which of the following would result in an increase in blood pH A) a buildup of CO$_2$ in the blood due to hypoventilation B) an increase in the amount of K$^+$ in the blood C) the excretion of H$^+$ into urine D) vasoconstriction of the afferent arterioles E) increased glomerular filtration rate

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I've tried doing this by grounding the bottom node and finding the voltage of each node and the current through each branch, but I got this incorrect answer (k=5.416). Any help would be appreciated. The power supplied by the 2-A current source in the figure is 400 W, calculate k. 511 5 8 W M W 20 51 20 5.416 the tolerance is +/-2%

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Exercise 1. Let R and S be commutative rings and let $: R - S be a ring homomorphism. (a) If S is an integral domain, show that ker is a prime ideal of R. (b) If S is a field and is surjective, show that ker is a maximal ideal. Hint: (a) can be done directly, but for it and (b) you can use Noether's first isomorphism theorem and Theorem 3.43 from the book.

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Text: Find B1 B2 😊 thanks Question 2 A, jumping four Monopoly store frozen meat are beef, pork, chicken, and sheep meat; beef price is $40, pork $36, chicken $35, lamb $46. The variable cost of all meat is $20. The Frozen Meat Store expects that the meat sales ratio in 2020 will be 2:3:4:5, and the fixed cost will be $336,000 per year. Claim: 1. Calculate the marginal contribution of each type of meat. 2. Assuming that the sales ratio remains unchanged, calculate the break-even sales unit of Tiaotiao frozen meat shop. 3. Assuming that the sales ratio remains unchanged, calculate the guaranteed sales amount of the jumping frozen meat shop. B, jumping frozen food store intends to open branches on the ring, which sells a noon meal lunch, priced at $5 for 0, average variable cost is $2.5, the store monthly rent is $40,000. The store's target operating profit is $120,000 per month. Claim: 1. Calculate how many lunch box store monthly sales required in order to achieve target operating profit margins. 2. Assume the shop actual monthly sales of 8,000 copies, jumping to existing frozen food store under four separate programs: a. Sell lunch boxes at a 10% discount and add drinks. The cost of each can of drinks is $3. b. The advertising fee is $80,000 when the advertisement is broadcast on the TV station. It is estimated that the sales of lunch boxes after the advertisement is broadcast can increase by 20%. c. The shop moved to North Point, the monthly rent was reduced to $30,000, but because people flow is relatively small, sales are expected to lunch box will be reduced by 40%. d. The lunch box is repackaged and sold in a light-weight package. The price and variable cost of the new lunch box are $37 and $21 respectively. Calculate the operating profit of each plan and state which plan you would recommend to Tiaotiao Frozen Meat Store.

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