Biology group chat

Yeast cell dividing.
In green theres a protein that stains the budneck.
At the budneck resides the actomyosin ring that separates the cells during telophase.
I think what we see in red is the nucleus or the nucleolous.

I actually downloaded the gif cause was cool. And I don't exactly remember where I got it.
I think is not even a simulation but a pseudo simulation.
In order to occour what happens in the gif the cell need an enzyme called DNA polymerase.
Since the formation of the phosphate groups bonds is quite time demanding.
But if you find more infos feel free to share

How did sex evolve?

Sex pili between two E coli.
The pilus is used to transfer genetic material (plasmid) to an other bacteria.
The plasmid transfered contains the information to create a new pilus and in general an advantage for the survival, like a resistance.

I'm not a real expert in evolution, so this information might be incorrect.
Clonal expansion (asexual reproduction) has the advantage of being fast and simple.
But is really dangerous to have only clones in nature because if the environmental conditions will change then your specie will die out.
Now sex evolved in order to have a better adaptability to the environment of the species, since sex truly icnreases the genetic variability of a specie.
Who from all organisms started to be the first one to be sexually active... I have no idea

What is your background? (major, uni, graduate school research etc.)

Virus invades cells in various and different modes. This artistic representation of the HIV virus entry shows in a coarse animation the first steps of the infection.
1. membrane fusion
2. capsid disassembly
3. genetic material into host nucleus

I have a master in biochemistry at the ETH Zurich.
I worked as a research assistent in a crystallography lab.
Then I did 3 years PhD, but I never got the title since I had to interrupt because of health problems. I'm lucky that during this 3 years I could publish something.
Now I work in a small biotech company.

Very nice. Hope you're better now. Roughly speaking, what kind of research was the PhD you undertook about?

You're wrong actually, wildlife makes up the majority of cable and internet pop-sci

Biological membranes. Double layers of phospholipids that filtrate what comes in and out in a cell.
Here is a simulation of a molecule crossing the diffusion barrier imposed by the membrane.

I worked for resolving the nuclear pore complex structure by means of cryo-electron microscopy.

But biology is so much more vast then the sexual behavior of lions .-.

>Let's start with a 3D picture of the humble yeast and his mitochondria network stained in green.
This picture emphasizes that mitochondria aren't actually those beans you see in textbooks. They are interconnected networks. The beans are an artifact that result from the preparation for electron microscopy.

>biology popularizer

kek

Ah, structural biology; I should have extrapolated based on the gifs you posted, heh.

Do people still watch wildlife shows? I thought that was a thing of the past, even though I enjoyed it when I was a kid. Even then it doesn't really compare with the popularity of BB or Cosmos. And the popsci sites always focus on astronomy and quantum buzzwords to keep people's attention more than anything else, at least from my experience. Where did you get the idea that internet popsci focuses on wildlife?

>that pic
>EEMB

As an astro major, I haven't taken any biology since my freshman year of high school, and I'll never need any more. Do you have any suggestions for self-study bio stuff that will actually teach me how everything works rather than popsci's random concepts? Let's just say I have a very open summer with nothing to do, lol

>astro major

No, go away

>biology
>hard science

k

The ribosome fucks your bitches

You have to go back to 0.9999...=1 threads

> Bean shape
I'm not completely sure that in all organisms are a network. I know that although the mitochondria tend to move, following the cytoskeleton networ (like in the gif). They also as a vesicular body are a ddynamic entity that fuses and gets separated.

Electronmicrograph of a mitochondrion.
In pink one can see the stroma, and the so called cristae.
In blue is the inside of the mitochondrion.
In reddish pinkish one can see the ribosomes.
This is a false color image, and is heavily stained. as this guy mentioned EM microscopy can lead to artifacts.

The picture I found it on twitter:
twitter.com/CellBiology_LR/status/731484164055269376

>Do people still watch wildlife shows?
That's also my impression. That documentaries about nature are somehow surpassed and that astronomy takes up most of the scene

I don't have biology posters, but I have to admit that I owned a 2000$ microscope for personal purposes...

Depends in which field you want to be actively research in.
Books are always good, I can suggest you some of the Biology books I had to read in my major.
But that's why I'm here, to bring biology to people. I'm active on different social media.
Telegram, instagram, twitter
next one to conquer, facebook and youtube.

Kek, this meme is very popular on Veeky Forums I love it.

On a serious note, also biology can be complex.
Here is a representation of some of the pathways used in our organism to process metabolites.
From gaining energy from glucose to processing ethanol.

I'm still impressed by how people could crystallize the structure of sucha huge complex.
RNA and proteins building a translational machinery.

I made an instagram post about it.
So i profit to share my instagram dedicated to biology.
instagram.com/pellostyle_biology/

In my instagram I post a picture (mostly weekly) and try to describe it on 3 levels.
Layman, biology enthusiast, biology expert.

D printed 70S ribosome! One of the many 3D print application is to finally have a solid model of the molecules of interest. ------------------------------------------------------
Cells are made of lipids, proteins, carbohydrates and other small molecules.
Proteins are composed of aminoacids in a specific sequence. The information on the composition are stored in the DNA. The machine that translates these informations from DNA to protein is called the ribosome. ------------------------------------------------------
The picture is a 3D printed model of the bacterial 70S ribosome. The ribosome is composed of rRNA, a molecule similar to DNA but with more catalytic power, and proteins. The different domain of the ribosome are printed in different colors. The proteins are in gray. ------------------------------------------------------
The ribosome here represented is a translating ribosome, with an mRNA strand in it. The tRNA responsible for the translation from the 3 base codon to the aminoacids are represented in shades of green. ------------------------------------------------------
Source: 3dmoleculardesigns.com/Education-Products/70S-Ribosome-Mini-Model.htm
Can be bought for 184$.

I love these little fuckers

I love fungi because of their extremely complicated way of reproduction.

Is like we humans would have a multicellular orrganism coming out of the sperm, an other organism for the fusion between egg and sperm, and finally back to be humans.

What are thooooooose... they look like deez nuts
uhm are they ascomycetes?

en.wikipedia.org/wiki/Slime_mold

which one in particular, I'm not really in the know. I study molecular biology, but fungi fascinate the shit out of me

Interesting fact, the biggest living organism on earth might be a fungi.
The mycelium of the mychorrizza under the yellowstone park might cover the whole area of the park. An immense ammount of cells interconnected by a single network.

that I knew, my microbiology prof/lecturer/teacher told us about it, partly her fault I like fungi

This are easily my favorite fungi formations.
Fairy circles, many of them grow in one night, because legends says that a fairy landed her foot in the middle of the circle.
In reality is because teh mycelium of this basidiomycete grows in circles, and when the fruiting season is ready, the mycelium pushes all the water into the edges forming the fruiting body.

Is she hot?

Hey i am from munich. I am about to graduate as a chemistry technician assistant with a priority in biochemistry. I like it because it has the best of booth aspects, biology and chemistry. Posts like yours inspired me to do this. Also I would like to work soon in a biotech company after finishing.

last time i saw her was in december, she was pregnant, and her bazoomas were huge, so yes, at least i thought she was

actually op, with people going to the gym they atleast care about the physiological aspect of it, metabolism, nutrition, things like that. that's bio

What are you interested in?

CRISPR Cas9 the revolution in genome editing.
This bacterial immunological system is able to mutate the DNA in a site directed mutagenesis allowing scientist to target specific region of the DNA instead of randomly insert mutations.

Thx man, I love to be the ispiration of someone.
Btw biochemistry in my opinion is not a fusion between chem and biology.
But a science by itself.
Biochemistry uses methods that in chemistry aren't used and explores the word of tiny stuff in away most of the biollogist hate, namely scientifically (lol).

Bazoomas ahhhhhah I coined a new term for mammaries.
Baloobalongoles

CRISPR Cas9 in your pic. The biology revolution!
Genetic doping is at the doors

Cannabinoid receptors

-------------- Layman -----------------

Neurons connect to each other via synapses. The incoming neuron secretes molecules in the synaptic cleft, which then will bind to the receptors present on the surface of the receiving neuron. The receptors are embedded in the membrane of the neuron. In general, they regulate the ion intake of the neuron in order to transmit the electric signal.

For source and more infos:
instagram.com/pellostyle_biology/

rub my hyphae daddy

Lovmi

tickle my spitzenkörper

seallow my spermatogonium

Not too accurate. You need DNA polimerase to match nukleotydes in such way

Technically the polimerase is just an enzyme meaning that is purely a catalyzator.
This means that the reaction occours naturaly just with different timing.

That's pretty

What a nice thread

David Goodsell, a Biologist with the passion for art.
His drawings are simply amazing.
Here we see a bacterial cell with the flagellum.

THX

That's true. But You have to consider, that an organism needs DNA to conduct metabolic reactions (more or less), so it can't just sit around doing nothing. Without metabolism organism dies, and then DNA decays pretty fast. So ,,over time explanation doesn't appeal to me. Also, one could say, that you can increase the speed of that process, by increasing temperature. Funnily enough, increasing the temperature is commonly used in PCR. But guess what. DNA polimerase is used in this prosses- specific type of polimerase taken from extremophiles, so it could withstand temperature of the process (up to 90℃, as far as I remember), but polimerase nonetheless

3D printed antibboddy

Just a wild guess
maybe they deleted the enzyme from the final render.

They probably did. It would opstuct the view
>which part of it is a wild guess?

Is that the full chart? I've been meaning to get it printed as wall poster for a while but lost it during a reformat.

That's pretty cool that you've been working on the nuclear pore structure. It was briefly mentioned in my undergrad class that it's structure and mechanisms are still almost a complete mystery