Along with Martin L. Weitzman, Gernot has co-authored the subject of today's talk, "Climate Shock-- How Unnatural Selection and Non-Random Mutation are Changing Life on Earth." In the book they explore the likely repercussions of a hotter planet drawing on and expandingfrom work previously unavailable to general audiences.
"Stop taking this so seriously. Mutation doesn't like that.
you can see between the 20 and 40-year-old age AG the percentage of BFF mutations is upwards of 80 to mutation so when we go back to what's different about melanoma and young adults and what's different about that
these forces that make it change forces like power and culture and and taste and bias and accidental mutation so one thing I wanted to do was try and follow the course of that changethrough history in other words how are all these words that we're using how did they acquire their current form and and
And the old idea that came out of the 1950s from mostly physicists who were previously working on the Manhattan Project, their idea was that we ran out of genetic information, mutations -- and I'm sure you've probably all heard of the mutation theory of aging-- that we just lose our genetic information.Turns out, that's probably wrong because we can make mice that have a lot of mutations and they lose a lot of their genetic information,
at micro and macro political levels, through"-- and these are all things I talk about in the book-- "developments in medical imaging technology, mutations in Western epistemologies of gender, medico-scientific congresses, case study interviews, blood work, and transformations in genetic research, among other phenomena,long before I ever began the slow process of trying to make sense of myself in relationship to it.
He took variation from Quetelet and said there's always variation biologically. Mutations cause variation. He took resource limitations from Malthus and said resource limitations mean that not everybody gets to reproduce.You put those two things together, and what you get is advancement.
a multitude of challenges that she faced along the way including anxiety sexism and abusive relationship to name a few Sarafina was also diagnosed with the cancer-causing broccoli gene mutation in her early 20s and chose to have a preventative double mastectomy at age 26. in this eloquently written book Serafina takes us all on an inspiring and honest journey through every step of the way with persistence and passion that led her to become the astrophysicist she is today so for those in the live stream audience we will have time for Q a so please go ahead and submit
And it's interesting that as you look at a large-enough population, you start to say, listen, these segments of DNA are protective. Any mutation here is lethal to the person. So we start to discover by elimination and by subtraction fascinating parts of the genome that are worth looking at.
And sometimes it isn't pretty. Random mutation means you could have six digits or seven. And when you're thinking about the consequences of this, sometimes when you have random mutation it actually looks like it makes sense.
So it turns out that having six fingers in the right place allows you to do things as a pitcher that other people can't do. Random mutation works sometimes, and often it does not. So what are the drivers of evolution?
So as this stuff moves forward, instead of having random mutation -- and this is a slide by Drew Endy where he describes this process. Random mutation takes the first line of code that you see up there. So a creature is born, a creature has no eyes, it develops one eye, has a few generations of one eye, it tries two eyes, two eyes are better.
And finally, it has a 1% mutation rate, compared to the average of 3.73%. Although mutations help by injecting diversity, for any single species, fewer mutations mean more faithful copies. If we rerun the simulation, you'll notice the outcomes are always slightly different, but the winning species consistently have high replication and low death and mutation rates.
because the genes that were once turned on correctly in my young cells, that that control system, these or mutations . If we're right, what should happen to these mice? They get old fast.
Lurking out there in our herds and flocks might be other animals that, unbeknownst to us, happen to have natural genetic mutations that protect them from disease. So one possibility is that if we can find and identify these animals, we can use cloning to create new stocks of breeder
Here, you can see that the winning population actually has a higher than average mutation rate, just by chance. And the average mutation rate is also higher than the starting value. These are simplified examples, but there is an ongoing argument about how much of evolution was actually due to natural selection and how much of it was up to chance.
um a health experience where you learned that you had the bracha gene mutation and decided to pursue a double mastectomy um so can you talk a bit about that experience um what were the risks that come with that gene mutation and the context that made you decide to like get tested and find out even so my dad was diagnosed with metastatic prostate cancer when I was in college and it was a very aggressive fast-moving cancer for him even though generally prostate cancer
it is to have a heart mutation . The hypertrophic cardiomyopathy mutation , 1 in 500 births. There's another one called TITIN, and that's one of the proteins in the sort of stripey bit, the muscle fiber that allows the cell to relax in between beats.
You can see there's really quite a lot of overlap between those. This is just one mutation , and there are many mutations . So there are lots of us walking around with unknown genetic mutations .
We still, though, haven't got a full artificial heart. With a TITIN mutation , they took a normal volunteer to see if they could see anything that was
as well. We don't know yet what's going to happen in the United States. which is mutation breeding where you use chemicals or X-rays to induce mutations in plant seeds, that's scarcely
That is a cancer mutation that is driving this cancer.
through the properties of mutation and natural selection.
of random mutation and natural selection, this was the incredible moment where we took the reins at our own evolutionary process.
are single-gene mutation , meaning it's like an on/off switch, whether it's Tay-Sachs, or sickle cell disease, or Huntington's disease, so-called Mendelian disease,
a unique mutation that is relatively rare in the natural world, but if you can edit it, you could imbue your child with 30 more healthy years
about this genetic mutation and the predisposition to Parkinson's.
Having a genetic mutation that predisposes you to breast cancer just means that you're at increased risk for it.
And it's random mutation and competition.
you can see pre-mutation carriers that don't have fragile X, and then, in one generation, it will show up.
So this is like a gene casino, where you throw the dice and the gene comes up with this letter or this letter or this letter or this letter. A random mutation is exactly that, which is the reason why you can get cats with 23 toes. All right. It's a random process.
have this BRAF mutation , that those patients live longer.
structure where the mutation is in the protein and what this specific amino acid substitution is potentially going to do to the interaction of that protein
two who have the mutation .
that have this S310 mutation , a cohort of patients with an L755 mutation , a cohort with V77L on down the line.
You mentioned the mutation rate in nuclear DNA is much lower than mitochondrial, and that makes sense.
One is done by mutation .
is a genetic mutation that has been correlated with a predisposition to violence and that is all true. And in fact it has begun to find it's way into the courts. The
They have a mutation of the growth hormone receptor.
you can see between the 20 and 40-year-old age AG the percentage of BFF mutations is upwards of 80 to 85% and the specific mutation the v600e mutation at BR which is the one this
it causes real biological mutation in the DNA. In other words, if this work is in Tokyo, from New York you can change the word of God in the body of the bacteria in Tokyo with
Evolution is driven by mutations , changes in the genetic code, which in turn change the amino acids within a given protein sequence.
Although there are genetic mutations that lead to certain timing of sleep, it turns out everybody I was doing this
We still, though, haven't got a full artificial heart. We took out the mutations from these two carriers, and we could see that that stopped the arrhythmias.
So they accumulate mutations , so they're genetically different more as they age, but they're also epigenetically more distinct as they age as well.
those genetic mutations in about 95% of people with leukemias.
You are full of mutations .
And then molecular mutations , where the copying mechanism is imperfect, can yield other molecules, which may be better or worse, but those
that progress to introduce mutations into the the development of synthetic
and for single-gene mutations , so-called Mendelian diseases.