Le noyau, chromosomes, les gènes et la construction de protéines

Introduction: Pour comprendre le noyau, les chromosomes or la synthèse de protéines, il faut au moins connaître le noyau de façon rudimentaire – vidéo préparée par l’INSERM par son MOOC sur la cellule.

Ce MOOC est du genre niveau lycée, années 10 à 12 en Colombie Britannique. Il sera peut-être donné à nouveau – mais si vous regardez sur ce site, il y a toujours des MOOC libre d’accès et gratuits.

Le séquençage du génome et ce que nous offre l’avenir

Résumé succint de la lecture d’un gène et sa traduction en protéine. Le français est très bien prononcé, donc un bon outil scolaire. Cette vidéo a été publiée par l’INSERM en 2017. Les introns et les exons, vous connaissiez?

Halloween: Why do we need to be mortal? or do we?

The day before All Saints Day of the Catholic church is the eve of the day of haloes (the rings of light around Saints’ representation in art), ie. Halloween. Don’t worry Halloween is a Pagan feast (Samhain), and the church piggy backed that day with one if its most important feasts November 1st. Samhein was the end of harvest and the start of Winter. Bonfires were lit and some cattle came in barns for the Winter and some were slaughtered and the meat conserved for the Winter months. People were scared of Winter and
Is it a need of the planet to be mortal? As we celebrate the mocking of death with Halloween, it seems the reaper is all part of a joke. But when I visit the elderly as I do more and more being an elder myself, I can only observe that only those who really REALLY suffer want to die at all. Death as part of life may be a myth. Grey gives us a taste of the problem:

Therefore CGP Grey tells us that to think of death as a positive is a deeply floored thought. But in the following video, Craig Benzine offers us this perspective. Death has to exist, because the planet changes, the climate modifies itself, and following this life evolves to fit the change. So for these scientists and thinkers, death has to be.

So if we are called to die one day, and can’t do much about it, let’s live in the best way possible. Let’s try to be fit of the body and of the mind. “The finite nature of life is what drives us to do our best.” This is Bill Nye’s big idea.

The mischievous Lesley Hazelton expresses the same concern in different words.

What’s wrong with dying?

So everyone, enjoy your Halloween the ghouls, and the candy, the ghosts and the styrofoam grave stones, but one day you’ll take time to reflect on your own immortality. I’ve got a maximum of 70,000 more days to live. I don’t pay insurance to a church or other religious entity to buy the promise of an immortal life. If you are a believer, I sure hope you are not wasting good money that could have gone towards a glass of wine here on earth. Carpe Diem.