Chapter 2: Q15.91 P (page 40)
What linkage joins the monomers in each strand of DNA?
Short Answer
DNA and RNA are held together by phosphodiester and hydrogen bonds. Each strand of DNA has a phosphodiester linkage that binds the monomers.
Chapter 2: Q15.91 P (page 40)
What linkage joins the monomers in each strand of DNA?
DNA and RNA are held together by phosphodiester and hydrogen bonds. Each strand of DNA has a phosphodiester linkage that binds the monomers.
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Get started for freeWhich of the following are pure substances? Explain.
(a) Calcium chloride, used to melt ice on roads, consists of two elements, calcium and chlorine, in a fixed mass ratio.
(b) Sulfur consists of sulfur atoms combined into octatomic molecules.
(c) Baking powder, a leavening agent, contains 26% to 30% sodium hydrogen carbonate and 30% to 35% calcium dihydrogen phosphate by mass.
(d) Cytosine, a component of DNA, consists of H, C, N, and O atoms bonded in a specific arrangement.
Give the name, atomic symbol, and group number of the element with the following Zvalue, and classify it as a metal, metalloid, or nonmetal:
(a) Z = 32 (b) Z = 15 (c) Z = 2 (d) Z = 3 (e) Z = 42
What is the key difference between an element and a compound?
State the mass law(s) demonstrated by the following experimental results, and explain your reasoning:
Experiment 1: A student heats 1.27 g of copper and 3.50 g of iodine to produce 3.81 g of a white compound; 0.96 g of iodine remains.
Experiment 2: A second student heats 2.55 g of copper and 3.50 g of iodine to form 5.25 g of a white compound, and 0.80 g of copper remains.
List two differences between a compound and a mixture.
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