The Ghost in Your Genes (part 5/5) [HD Widescreen]

[1003JustinLaw]

This is incredible, it opens up a whole new level of understanding when it comes to genetic problems or even family traditions. Where did a disease originate from? Before one could say from a mutation, but now it's becoming impossible to trace. Are family traditions followed because it is taught that way? Or is it that the younger generations are just reliving what their parents have gone through? Or their grandparrents for that matter. The question I want to ask now is: where did this start?

[1003JustinLaw]

@1003JustinLaw I suppose I should rephrase that last bit: where did this trans-generation system originate from? Before one could say "oh, it was some random mutation that gave this type of organism a survival advantage", but is it? Could this be a successor system to a similar but less advantages inherritence system, something those organisms have learnt? Could we, one day, develop a whole new system that can, maybe, pass on not only experiences, but memories also?

Yep, I've found my thesis.

[Boris194786]

It would be interesting to know what kind of events, other than the ones mentioned in the documentary, would switch genes on or off.

Did the changes that Darwin's finches underwent by living in different islands of the Galapagos were caused by natural selection or the survival of the fittest or by the effects of epigenetics?

[GoleZahra14]

Absolutely fascinating. Thanks for sharing.