there's no such thing as "rejecting foreign dna" and there's no such thing as "opening up dna".
holy shit wtf does "opening up dna" even mean 
pseudo science only works in cartoons.
Anyway, I've got the answers prety much to the question I asked..
keep feeding from david icke 
I cannot gratify you with a serious detailed answer cause in your own words "you don't know"
you are a dumb 20 yo kid anyway
the only thing you heard that is somewhat similar with the info I put out is David Icke ..so you keep hammering on that
look... I'm sure it's past bed time for you .. why not ask your mum to read your favourite bedtime story ?
some warm milk, cookies..you'll be allright .
nighty nite ..keep your butthole tight