1 Mr. Brownlow, the man who was robbed, takes pity on Oliver and takes him back to his house. 2  Oliverâs sick, and Mr. Brownlow and his housekeeper take care of him. 3  Once Oliver is better, he is entrusted with some money and an errand in the city.
Hydrogen bonding is important in many chemical processes. Hydrogen bonding is responsible for water's unique solvent capabilities. Hydrogen bonds hold complementary strands of DNA together, and they are responsible for determining the three-dimensional structure of folded proteins including enzymes and antibodies.
DNA have hydrogen bonds that pair AT and GC, and thats the way one strand and its antiparallel strand bind together. Since hydrogen bond its a physical bond you can separate both strands of DNA. The use of the pairing of the antiparallel strand with the other strand its to stabilize the DNA molecule, to preserve information so its only accesible when need it. The strands of DNA are calles: Sense 5â² -> 3â² and antisense (antiparallel strand) 3â² <- 5â².