@farmerman,
Of course I don't "Understand" genetics. I have not studied the subject.
All I know is that the word derives from the same source that "Genesis" does and that it is concerned with inheritance of biological characteristics as opposed to the inheritance of material possessions or climate although the latter aspects are often of decisive influence on the biology as many an actress will inform you.
The principle has been known since ancient times in both respects, despite not being subject to longwordism, in regard to crops and animal husbandry. Exogamic marriage customs to counter inbreeding is also of an ancient lineage and cricket derives from the principle.
Like all sciences, it does not understand its subject but only seeks to. Indeed seeking is all it can ever do. The longwordian science might be said to have begun with Mendel who identified, speculatively, objects which we now label genes. We like to label things to produce an illusion that we understand them. The application of longwordianism is merely a device which helps control freaks to lord it over people with other skills and knowledge bases.
Genes are components of what we label deoxyribonucleic acid and contain the instructions by which some aspects of inherited characteristics are managed and are subject to other influences such as interaction with the environment.
I obviously accept that those who have studied the subject understand it better than I do but what their level of understanding is in proportion to what there is to be understood is likely of a low order and will remain so if they complacently believe otherwise for the purpose of self gratification.
The rest of your post is just more of the usual inane bullshit so I will refer you to any one of the previous answers I have given to such material.
Your response to MermaidVision is scientific proof of your male chauvinist piggery and asserting that I am guilty of that is meaningless. It is also proof that your mind separates human from animal responses and thus you are profoundly confused, or pulling the wool, about teaching evolution to healthy adolescents.
In the dynamics involved in the penetration of one of the millions of spermatozoa into the egg of a human female do you allow that environmental and psychological factors are involved or do you think it is a matter of pure mechanical chance.
It can hardly inspire much confidence in your intelligence effemm that you still resort to ignorant and insulting invective after five years of it having no effect on me. And neither do I have the slightest interest in what those it does have an effect on think. Their presence on a science thread can only be for the purpose of snuggling up to the subject in order that they might "wink" hints of it out on social occasions as a form of sexual signal.