We are not nearly as determined by our genes as once thought

So the accepted “central dogma” could be conceived as the one-way flow of information from the code in the gene:

as if production of the words alone is tantamount to writing the whole “book” of a complex being. Then came the brilliant technology for sequencing genes (the components or “letters” in the DNA) in the whole genome. Eggs and sperm contain a vast variety of factors: enzymes and other proteins; amino acids; vitamins, minerals; fats; RNAs (nucleic acids other than DNA); hundreds of cell signalling factors; and other products of the parents’ genes, other than genes themselves.

Source: nautil.us