Sexual and asexual reproduction. Mathematical models
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- เผยแพร่เมื่อ 22 ส.ค. 2024
- What is the advantage of sexual reproduction over asexual?
Simple models show the benefits of sexual reproduction.
It is worth noting that most organisms that do not have sexual reproduction use other ways of exchanging genes.
You can play with interactive models here:
foo52ru.github...
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I love how this is just an intro to genetics.
16:40 love how you used cursed sounds off hell and suffering to profile the harmfull mutations taking over
I never understood the advantages of sexual reproduction until this video
19:07 thought this was going elsewhere for a moment lmao
"I have never used sexual reproduction in my life, I am very lonely."
great visual representation of these abstract concepts !
15:25 so that's why you don't do incest... Gotta keep the population as big as possible
I don't get it
@@NeroDefoggerincest means you prevent the mixing of potentially beneficial diverse genes. If you mate with your sibling, who has about half of your genome, you are depriving your kids of potentially beneficial genes from someone else. Also, harmful genes become more able to display their phenotype if you do incest
This is a very good made video, even for people who don't understand math, it was very entertaining.
Btw, what was that ending😂😂
Huh, I didn't see this video in my feed when it dropped, had to go to your channel directly after seeing new video, weird.
It's surprising how beneficial sexual reproduction is, especially with large populations. Or alternatively, how beneficial it is to have large intermixed populations to maintain a healthy species.
amazing video as always, visualisations are fun 👍
also there is a little typo [it's supposed to be genomE]
19:45 really glad he said this, because I was thinking it the whole time. asexual organisms CAN share genes... though its a lot less thorough.
Your videos are fun and easy for me to understand these biological facts, keep on going!
Great video! Love your deep dives!
Would've liked to see some variations on pure asexual and sexual reproduction:
Loads of organism irl will employ hybrid strategies, capable of both, and preferring either depending on circumstances. And Fungi are completely *wild* with some species having absurdly off the charts far more sexes than mere two.
It's also very interesting just how important population size and selection pressure are. And by your globally randomized two offspring per parent method, you eliminated a lot of other factors that would play a big role irl:
For one, stuff would have to work locally, both in terms of literal physical proximity (well, to a point. Obviously there are loads of strategies that mitigate this. Looking at you, spores), and in terms of the pieces need to fit together to result in offspring that themselves remain capable of reproducing.
For another, if it's a more or less cooperative act between two+ organisms, you'd naturally get coevolution dynamics and sexual selection, which leads to all sorts of weird and interesting outcomes that go completely unexplored by this simple simulation.
Nevertheless, excellent work! The most interesting aspect imo is how much more effective sexual selection apparently ends up being in particularly low-pressure mutations. Presumably that translates to far weaker signals having a proper chance to persist, and thus to allow far more gradual evolutionary steps, exploring the fitness landscape in a much more fine-grained manner than clones ever could.
the happenings around 11:40 looked like there were just more other beneficial genes in the part of the population that didn't have the 2 highlighted genes so they managed to push the rest out?
Absolutely brilliant explanation and visuals! Never have I understood the pros and cons so clearly. I to a grappling with how to do sexual reproduction in a simulation with a compatible genome. I feel some kind of Gene Regulation Network allowing duplicate ‘genes’ and soft input/outputs much like protein specifity might be required
great video i finally understand this... what if there was 3 or more... like u need 3 parents for each offspring wouldn't this be even better than 2?
yeah but then you have to consider the fact that it's VERY MUCH harder to find 2 partners than 1, even more so for some species like frogs who just... "finish" inside a lake, the probability for a female to catch material of 2 different frogs would be very reduced
I saw a few attempts at simulating that - always with the same result: Increased cost and complications for zero additional benefit. Drift is not affected at all.
I don't think there is any case of 3+ parents, however, that's not the only way in which this may come up.
Apparently loads of fungi have an insanely increased number of variants in which offspring can be formed. In their case it still, afaik, only ever takes two parents, but they hugely increased the possible ways in which parents may come together to form an offspring.
2 parents is the simplest option that allows the exchange of genes between different organisms.
Once upon a time there were computers based on ternary logic, but the binary version won because it is simpler and gives the same advantages
That is a nice base. Please follow it up with an introduction to information retention, dominant/recessive alleles and chromosome crossover.
genome affect each others, a gene good for one might be bad for another
Please upload more i love your channel
Come on babe, it’s for the future of the population
I wonder how you will manage sexual reproduction in the battle of clans world, if all creatures will be assumed to be compatible or only those with ~90% similar genomes. Or if you're going to add another cell which fertilizes seeds like spores. Since most organisms are plant-like it'd be hard to avoid self fertilization, which is fine because most plants do self fertilize.
".. you're going to add another cell which fertilizes seeds like spores.." - I like this idea
this is gold
Я с превьюшки угарнул 👍
Very nice visualisation to explain these concepts. Even though i am quite familiar with them, it renewed my understanding. My favorite way of reproduction is definitely sexual 🤣
Very interesting indeed
hmmm
Interesting
noice
this is gold