Patchwork People

Просмотров 1 тыс.

% 119

Let's talk of chimeras and mosaics and people.
Transcript here:
freethoughtblogs.com/pharyngula/2024/06/20/patchwork-people/
Identical twins, one case of Down syndrome: www.latimes.com/science/sciencenow/la-sci-sn-twins-down-syndrome-genetics-20140416-story.html
The fusion of two sisters into a single woman suggests that human identity is not in our DNA: english.elpais.com/science-tech/2024-05-08/the-fusion-of-two-sisters-into-a-single-woman-suggests-that-human-identity-is-not-in-our-dna.html
Jeremy Thorpe, Ikeoluwa A. Osei-Owusu, Bracha Erlanger Avigdor, Rossella Tuplerl, Jonathan Pevsner (2020) Mosaicism in Human Health and Disease. Annu. Rev. Genet. 2020. 54:487-510.
Vijg J (2000) Somatic mutations and aging: a re-evaluation. Mutation Research 447: 117-135.
Thompson DJ et al. (2019) Genetic predisposition to mosaic Y chromosome loss in blood. Nature 575:652-657,
Blog: freethoughtblogs.com/pharyngula/
Patreon:
patreon.com/pzmyers
Mastodon:
octodon.social/@pzmyers
Bluesky:
bsky.app/profile/pzmyers.bsky...
Instagram:
instagram.com/ pzmyers
Email:
pzmyers@gmail.com

Наука

Опубликовано:

21 июн 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 18

@TheDanEdwards 11 дней назад

*SHE HAS TWO SOULS!!* (Just wait for it....)

@thomasneal9291 11 дней назад

I wish more people would watch things like this. keep puttin' them out there.

@dipi71 11 дней назад

I get why science-fiction authors like Neal Stephenson (»Seveneves«) or Scott Sigler (»Nocturnal«) use aspects of epigenetics and chromosomal variation for their stories as a plot device so effectively. It sounds like fiction to most people who didn't get any education beyond flowers, bees, and which sex has which dangly bits.

@bengreen171 11 дней назад

Very interesting. Aside from the obvious connotations this has in our modern world - is there a possibility that this sort of thing has a role to play in the extinction - whatever that means - of species throughout history?

@AnnaAnna-uc2ff 11 дней назад

Thanks.

@brucecook502 11 дней назад

😎

@mikefochtman7164 10 дней назад

Interesting stuff. So, quite simply, my DNA is not what I was born with ;) (I know that's being overly simplistic, but it is interesting to see how it shifts and actually changes with age)

@qwertyuiopgarth 10 дней назад

????? Are there examples of conjoined twins who are genetically distinct? I thought they were always identical twins that didn't quite fully separate.

@timblanchard3539 9 дней назад

This should be required viewing for the gender-fixed-at-conception/birth folks. No, it doesn't address this topic directly and yes, very few will have the scientific chops to grasp much of the argument but the obvious fact of cytological/developmental/environmental (not just genetic) variability contributing to the individual pre and post birth might make some impression.

@allanbilbao6614 11 дней назад

I love watching PZ debate creationists😂

@P.funkei 9 дней назад

17:36 What's the significance, if any, in the increased or stable H4 acetylation at the age of 50 in graph (B)?

@PZMyersBiology 7 дней назад

I don't know, but H4 acetylation is a precursor to replication. The main point of the figure is that the H4 acetylation becomes discordant in older twins.