From what I can understand from this, plants go toward the sun b/c it wants more sunlight. This is apparent when you just let a tiny piece of sunlight to the plant. The plant will grow toward the sunlight so that it can get more.
Add all of the events to get
Is a DNA strand it pair with TCG ATA CGG TTT
Dehydration synthesis :) it means that monomers (like glucose or lactose) when bonded together release water molecules