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- Can you please explain why E is correct?Match the following nucleobases (designated AD) with their names and answer questions about them. NH, NH, C D NH2 Note that some of the items from the answer list should NOT be used. Guanine 1. Aand B - Cytosine 2 Cand D • Adenine 3. Not shuwn v Thymine 4. D v Uracil 5. B a Aand C v Which of tho shown bases are pyrimidines? 7. A and O v Which of the shown bases form canonical A-T Watson-Crick base pair? S. A v Which of the shown bases form canonical G-C Watson.Crick base-pair? 9. Band C 10. C 11. Band D#7 the highlighted structure is the ??
- 6. Hemoglobin molecules in blood bind oxygen and carry it to cells, where it takes part in metabolism. The binding of oxygen: hemoglobin (aq) + O2(aq) hemoglobin O2(aq) is first order in hemoglobin and first order in dissolved oxygen, with a rate constant of 4x107 M-1s-1. Calculate the initial rate at which oxygen will be bound to hemoglobin if the concentration of hemoglobin is 2 x 10-9 M and that of oxygen is 5x10-5M.3. The structure of phenylalanine is shown to the right. (a) Will phenylalanine test positive or negative in the biuret test? Why? TSI Yews II wo Loy enoted alo eris to abitarvet (b) What color do you expect when phenylalanine is added to the biuret test? mula H3N-CH-C- | CH₂ oldat noilsviezdo tast nieto199. Titration of valine by a strong base, for example NaOH, reveals two pK's. The titration reaction occurring at pK2 (pK2 = 9.62) is: a) —СООН + Он -> —соо" + Н20. b) -COOH + -NH2 -> -COO" +-NH2*. c) -co0 +-NH2* ->-COOH +–NH2. d) –NH3* + OH" -> –NH2 + H2O. e) –NH2 + OH -> –NH + H2O. 10.In a highly basic solution, pH = 13, the dominant form of glycine is: а) NH2—CH2—СООН. b) NH2-CH2-coO". c) NH2-CH3*-coo. d) NH3*-CH2-COOH. e) NH3*-CH2-coo".
- 6. Using the charges you calculated above, plot the characteristics of alanine over a range of pH values. Connect the points by estimating what the charge should be at pH values where you lack data. It is possible to calculate the charge at any pH, but if you understand the relationships presented here you will be able to make estimates quickly and easily. +2 +1.5 +1 - +0.5- -0.5 - -1- -1.5 - 7. 6. 11 13 14 pH of solution 7. Aspartic acid has a side chain bearing a carboxylic acid group; its pK, is 4. The a-amino and a-carboxylic groups have pKa values similar to those of alanine. Determine the net charge on aspartic acid at the following pH values: pH 1 pH 2 pH 4 pH 9 pH 13 Net charge of molecules 2.PLEASE ANSWER ALL d) in base pairing, why do we never see AG, GA, CT or TC forming complementary base pairs? e) why is vegetarianism a more energy intensive process (from the organism standpoint) than being omnivores? [DON'T EVEN THINK OF STATING ANYTHING ABOUT FIBER, BULK, AND/OR CELULOSE!!!!] f) why is significant serum (in the bloodstream) cholesterol reduction so difficult, and why do most of the drugs designed to reduce cholesterol target the liver?Why 3' end should be G and C and 3' should not have more than 3 consecutive G and C?
- Pls help me with the given question and explain your correct answer, thank you A group of absent-minded scientists has two numbers (25.4 and 2.54) written on a scrap of paper. One scientists says: “I remember that one of these values was the standard deviation and the other the standard error of the mean, but I can’t remember which is which”. a)Which number is the standard deviation, and which is the standard error of the mean? b)What was the sample size? SE= s/√(2√n)Answer D E and F d) in base pairing, why do we never see AG, GA, CT or TC forming complementary base pairs? e) why is vegetarianism a more energy intensive process (from the organism standpoint) than being omnivores? [DON'T EVEN THINK OF STATING ANYTHING ABOUT FIBER, BULK, AND/OR CELULOSE!!!!] f) why is significant serum (in the bloodstream) cholesterol reduction so difficult, and why do most of the drugs designed to reduce cholesterol target the liver?Can you please explain why C is correct?