Conduction is a process where transfer of heat occurs when two objects of different temperature are held adjacent to each other. Heat gets transferred from hot substance to cool substance.
For example, when a copper pot is placed over a stove then heat transfers from stove to the copper pot.
Thus, we can conclude that heat would best be transferred by conduction between a stove and a copper pot.
In an isotonic solution the relative concentration of solute and water are equal on both sides of the membrane.so there is no water movement so there is no change in the size of the cell but, when a cell is placed in a hypotonic solution water will enter the cell and the cell will swell.
double stranded molecule does not describe the structure of RNA. Most RNA are single stranded with partial double stranded regions. RNA has basic component as the DNA that is have four nitrogenous base, contain phosphate group and have 5 carbon sugar.