mikrobiotch
studyblr walaupun dah habis degree aha | mikrobiologi
186 posts
Latest Posts by mikrobiotch
Unidentified protist. Quite the hyper one.
I'll miss micro lab...
TSIA, Citrate, TSIA
Do I have like 3 other microbiology courses in my future? Yes. Will I miss this lab? Also yes, a lot. I loved this lab. My first introduction to real microbiology. The lab that made me realize I want to go into microbiology in the future. I'm happy to have taken it :)
The shape of a fish's caudal tail can tell you a lot about how fast the fish moves! A rounded tail is the slowest and a lunate tail is the fastest! The lunate tail has the most optimal ratio of high thrust and low draw, making it the fastest.
Ichthyology Notes 2/?
Yersinia pestis
Yersinia pestis is the bacterium responsible for plague, with the most common manifestations being bubonic plague, septicemic plague, and pneumonic plague.
Image taken via transmission electron microscopy. Bar = 1 μm
Photo credit: Hans R. Gelderblom, Rolf Reissbrodt/RKI
still amazes me that scientists were just like what if we shot cells with dna coated mini bullets really really hard to insert that dna into the genome. and somehow that fucking worked
A foto I took during my histology classes of a mouse's bones, muscles, skin, cartilage, and connective tissue.
This shit is gorgeous.
It's not the best "microbiology" art, but it has a very interesting background. Two bacteria from two different clinical cases were inoculated on the TSCB medium. This metallic blue spilling bacterium is of course Pseudomonas aeruginosa. The yellow one (positive reaction on TSCB medium) is Vibrio metschnikovii isolated from chronic UTI in a dog. It was an unusual microbiological diagnosis. But what can you do when even your dog has a better holiday than you? Problems with urination (in this dog) began just after returning from the Mediterranean, the owners and the dog intensively used the charms of warm and salty water.
Photos from my friend who is a vet tech
Microcosms (2023)
linocuts on colored paper
(diatom species pictured: Stauroneis acuta, Pleurosigma inflatum, Triceratium pentacrinus, Actinoptychus heliopelta)
Seriously, genetics is weird.
I was reading one paper on long noncoding RNAs and there's this one part that just really stood out to me.
So to catch everyone up, genetic data is stored as DNA. Then parts of it go through a process called transcription to build a strand of RNA. Certain RNAs get translated into proteins, but there are noncoding RNAs that don't make proteins but instead do a secret second thing (and I mean secret cause there are tons of ncRNAs that no one knows what they do). long noncoding RNAs are just noticeably longer than average.
Anyway, one lncRNA mentioned in the paper is called WINCR1. When the researchers managed to block it from being used, they noted that cells lost the ability to divide and there was one particular gene GADD45B, which is responsible for triggering apoptosis, was more common in the cells.
So my guess is one of WINCR1's jobs is to just confirm to the self-destruct system that the DNA isn't broken. Like, it being transcribed essentially tells the cell that that part of the DNA is still working and it can then go and turn off the kill switch.
So I guess cells are just designed to kill themselves as their default setting and WINCR1 is the drinking bird pressing the Y key to tell the system to not just blow up.
gifts for microbio and paleo enthusiasts! :DD
Kinda wild how all the bacteria in your gut have their own DNA, like they are not related to you, they don't have your DNA in them, they are just separate lil beings that just live in your gut. They don't even know they live inside a human, but you are their whole universe
Microbiology!
[ID: a banner made of emojis of microscopes, bubbling flasks, and DNA, with different bacteria emojis from a combo emoji scattered between them. /End ID]
this might be a stupid question, but if theres a protein that multiple organisms need, wouldn't the a t g c genetic code for it be the same for different species? or at least closely related species? so theoretically some prompts/sequences should have multiple fitting organisms or closest fitting organisms
(i know it isn't this simple, but im wondering what the exact reason it doesn't work like that is, or what im missing)
not a stupid question, i'll try to answer it to the best of my understanding, but if anyone has anything to add, please do.
put shortly: you're right! if multiple organisms need a certain protein, the code in their DNA is generally the same in that region.
from a genetics perspective, all organisms are actually extremely similar. i'm sure you've heard that we humans share more than half our genetic information with bananas and such.
this is just a factor of how evolution works. every so often, a mutation occurs in an organism's genome, which has a chance to increase the fitness of that organism, which allows it to have more offspring, which changes the mix of alleles in the population. and this is how we get different species of things.
but, because we all share a common ancestor from a long, long, long, long time ago, we do maintain some similarities, especially in regions that code for things essential to life.
those regions where things are *different* is where we're able to tell one species from another, differentiating moths from trees and such. but, overall, all living organisms have a whole lot in common.
This NPR interview with with Angela Saini about how race science never really left the global scientific consciousness is super interesting! I’m gonna read her book!
hello hellsitegenetics. do u know how to stop wanting to eat electrophoresis gel
the craving never stops you just have to get good at eating it when the lab supervisors arent looking
what the heck is blast
a tool for wizards
you know what? no! *sanger sequences you and aligns you with a sequence of saxifraga rosacea no matter how many gaps i have to add between singular bases*
String identified: t g c g a a g. a t t a . t t t c g c g ' t . t. t c g c . a at c tt a a . t t . c a . t' at t t at t a a a . a ' t g t . at a c .
Closest match: Saxifraga rosaceawait how did you do that. what the fuck
