Risk which is common to an entire class of assets or liabilities. The value of investments may decline over a given time period simply because of economic changes or other events that impact large portions of the market.
Properties of the alpha-helix. 1  The structure repeats itself every 5.4 Angstroms along the helix axis, ie we say that the alpha-helix has a pitch of 5.4 Angstroms. Alpha-helices have 3.6 amino acid residues per turn, ie a helix 36 amino acids long would form 10 turns.
Rating Newest Oldest. Best Answer: A: The DNA molecule looks like a twisted ladder, or spiral staircase. It is often referred to as a âdouble helix.â A helix is a shape that twists like the threads of a screw.The sides of the double helix are made up of the deoxyribose sugar and phosphate groups.Each rung or step on the DNA ladder is made up of a pair of nitrogenous bases. Look closely at the diagram. Notice that the bases on one side of the ladder match up in a specific way with the bases on the other side.ating Newest Oldest. Best Answer: A: The DNA molecule looks like a twisted ladder, or spiral staircase. It is often referred to as a âdouble helix.â A helix is a shape that twists like the threads of a screw.