Heh, funnily enough I did pretty well back in school. But it’s been quite a while since I’ve learnt this stuff and it’s not something I ever specialised in. And when I did learn it, it was essentially just a series of facts that you had to memorise. ‘The mitochondria is the powerhouse of the cell’ etc. etc. So the second I passed that exam, I don’t think I ever went back to reinforce those memories.
Hearing about genetic dominance again did give me an ‘ah, of course!’ moment. If you are able to recall everything you learnt in school (including subjects that you may not have had much interest in), then congrats on the impressive memory :)
sxan@midwest.social 5 weeks ago
Basic K12 biology didn’t go into deep details; OP is asking, I think, what decides which genes are combined. You can only get at most half of each from the parents - you don’t get all of each - so what exactly selects which genes from each are combined?