Nucleotide:Nucleotides are organic molecules that serve as subunits (monomers) forming nucleic acids like DNA and RNA. They're essentially your 'ingredients' for your recipes.
Gene Expression:This is when information from a gene is used to create functional products like proteins – akin to following your recipe step by step until you get your final dish.
Genome: The genome includes all genetic material present in an organism’s chromosomes – it's the entire collection of 'recipes' in your recipe book.