Which factor stabilizes the alpha-helical structure of proteins?
ADisulfide bonds
BHydrophobic forces
CIonic interactions
DHydrogen bonds
The α-helix and β-pleated sheet in proteins are examples of which level of protein structure?
APrimary structure
BSecondary structure
CTertiary structure
DQuaternary structure
The type of mutation that leads to the replacement of valine for glutamate in sickle cell disease is?
APoint mutation
BSilent mutation
CNonsense mutation
DNone of the options
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