So I have this interview question- u are given three test tubes-one has DNA, one has RNA, one has two of them. Tell me a single test/experiment to differentiate DNA and RNA.

This interview is for enrolling into a BS Program for Biology.

For example, when the person is suffering from viral infection, body starts releasing inflammatory signals (that also happens with unhealthy lifestyle). So usually with fever for example some body parts start hurting. They are not damaged but they hurt. You are not moving them but they hurt.

Is inflammation solely the message for the brain to perceive something as hurting, or is it actually causing molecular damage? In other words if your body is releasing an inflammatory response is that damaging?

Is inflammation kind of deception of the brain to control your behavior or is it an exact measurement of the damage being done at the moment?

This might not make sense, but I don't understand inflammation very well, but I know how it feels.

Hello! I’m currently working towards a degree in Genetics, Human Physiology, and Psychology and I am approaching the time in my uni life where I need to start getting an idea of the next steps after my bachelor’s.

I wanted to hear from people in the biological field what helped you guys when networking and looking for jobs/internships. I am looking towards getting a master’s degree, but I still want to keep my options open in terms of whats next.

I have a LinkedIn account, and I do interact with my professors and students. I just have no idea how to go out into the professional world. I’m the first one in my family to go into this sort of direction and we don’t know many people who have pursued career paths in biology.

I’m considering going into the world of genetic counseling but am also interested in neuroscience/neuropsychology.

What tips or advice do you have to offer?

Edit: I am from South Africa, if that makes a difference to the advice :)

Does anybody know any website where I can practice bio MCQs and get their explanations for free? High school and university level

Hi everyone, I hope you're all doing well. I just graduated from high school and I'm thinking of working in biotech. I'm intrigued by the mechanics of life and I would like to be part of the industry that is actively trying figure out more about the mysteries of life. But biotech isn't known for its high wages, compared to fields like IT and computer science. Biotech doesn't compare when it comes to earning potential. I'm very anxious about earning potential because in my culture, if your passion doesn't pay a lot you become looked down upon. Enough of the chit-chat, will majoring in computational biology open more opportunities for earning more in biotech compared to other biosciences? Just a curious teenager wanting asking for help navigating this complex industry. Thanks in advance.

I was just curious and I wanted to know information on that.I meant to say Himself** and fraternal.**

Hi, I am a 17 year old student fresh out of highschool who messed up his graduation and only been accepted in a biology college. I sound as if I am compaining, but I am extremly happy as biology is the only scientifical subject I genuinly love with all my heart (I am okayish in physics and fairly bad at maths as I honestly find no fun in it).

I heard about fields like biotechnology and bioinformatics and am losing my mind about them, I WANT to make this dream come true. And am willing to do absolutely anything for it. Is it possible to up my abilities in maths and physics by the time I am able to start specialising in biotechnology (this takes about 3 years to do but I would have to work on this while validating my years which is a nightmare in my countries).

I want to make a living out of my passion, so please I am absolutely begging, help me.

(excuse any grammar mistakes or spelling mistakes I ain't really a native english speaker)

I'm sure I'm not the first one to say that more than DNA and ribosomes, more than viruses, to me, ATP Synthase jumped out to me as the most incredible molecular machine I'd ever learned of. Almost enough to make me doubt that it was randomly created.

Do you have a feeling like that about something in Biology? I'm curious about other mind blowing examples of Biological details.

Lysenkoism aside, of course.

I am not in any science field, so forgive what may seem to be a basic question. I was watching a documentary on CRISPR, and it gave rise to a question that I am unable to find a relatively quick answer to on google.

We carry two sister chromatids, and each one is supposed to be a copy of one another, and in the event the DNA strand is broken, the sister chromatid can be used as a template to repair the gene. This caused the following thought to go through my head however...

If we can have one chromatid from mom, and another from dad, wont there be differing genes on each chromatid (hence the dominant and recessive concept, because one strand may carry a gene from dad saying eyes are blue, and the other chromatid which came from mom carries the dominant gene for brown eyes), when a gene is broken, and the sister chromatid is used as a template, wouldnt it copy, in this case, the recessive gene to repair the dominant gene, thus causing chaos?

So for example, the left DNA strand has the gene for brown eyes, and the right strand has the gene for blue eyes. When the brown eye gene is broken, and the template used for repair is blue, doesnt this cause problems? I assume a single cell that went through this process to change the persons eye color (because there are a bazillion cells in the eyes that in totality dictate eye color??) wouldnt cause a persons eyes to change, but how does this get resolved?

The question they posed was this, “If a statistically improbable amount of random mutations occurred in just the right places all at once, could a turtle (or [insert animal]) come from a chicken egg (or [insert different animal])?” In the discussion, it was chicken egg to turtle.

The debate was whether or not the statistical improbability is capable of happening. No matter how low the chance of all the random mutations happening in the earliest stages of development is, they argue that it can still happen, and that a turtle could come out of a chicken egg.

My stance on the matter is that the chances are 0, BUT, due to my lack of knowledge on these matters, I yielded to, “even if they all happened, the embryo would not be able to develop any further”. This conversation went nowhere.

I don’t know what type of answer I’m looking for. Honestly, I don’t even care if I’m wrong. Get as complicated as you want, get as technical as you want. I doubt they will accept an answer about classification of “new” animals, but go ahead.

I don’t mean like Neanderthals or Homo Erectus or any ancestor, I mean the humans that lived before recorded history; cavemen and hunter-gatherers. How strong were they compared to modern day humans? Stronger than the average kinda healthy 20 year old? As strong as a professional athlete? About as strong as a health conscious gym guy? Or even as strong as a competitive deadlifter?

How did they compare to modern day humans?

In regards to humans, it seems in many women, when they get pregnant, they gain weight in excess of that of the baby's weight. Wouldn't it make more sense evolutionarily to put all of the nutrients into the baby rather than keeping a higher than average number of nutrients for the mother? I get that the mother needs to nurse the baby, but is the entire weight gain from pregnancy supposed to eventually be turned into milk for the child? Is it just that modern society provides foods that are too fatty and that a hunter gatherer mother would not gain weight as much during pregnancy? What are your thoughts?

Hello! I'm a first-year biology student in undergrad and am beginning to develop an interest in prokaryotes, specifically extremophiles. I'm also gaining interest in fungi, specifically medical mycology. My intro-level courses tackled them very lightly and I'd like to learn more about them. Any good textbook recommendations on prokaryotes (or specifically prokaryotic extremophiles) and mycology would be greatly appreciated!

If you have any studies or textbooks on eukaryotic extremophiles, I would appreciate those as well!

As beasts of burden who require enormous amounts of energy, how the hell do horses get the caloric intake they need from just grasses and oats and carrots and such. Like as an office worker human I don't do a fraction of the amount of work horses do and yet I require proteins and such. How do horses do this? Does that make sense?

I am not good at highschool math. But i love biology. I always tell biology facts to my friends. I remember drawing the taxonomy of humans to prove evolution to my teacher and my classmates. I did this in the 10th grade. I am 16.

Iam getting interested in science and also Human body and our brain so can someone help this curious boy to explore its curiosity?

We can eat garlic, onions, spice, salt and sugar but these hurt some other animals, especially pets. Why do we have to be careful when we feed some pets?

Edit: made the question make more sense.

Same as title, textbook talks about lifehistory traits. Campbell's biology says something like each trait is one version of a character. Are all traits mentioned here are same word? Do they be used under genetics background?

Is there some kind of job that deals with interactions of molecules/proteins in biology?

Whats the job(s) like? Is it fun? Interesting? How difficult is it?

Since apprently most old ppl who die from "old age" or "natural causes" is actually just dying because theyre too weak to fight against that last flu, or got a stroke, or got a heart attack (i mean, how? If theyre in good health, whats causing the blockage?).

So say if we can theoretically live without any problems at all, how long does it takes for our organs to just...randomly stops working one day and actually dies? Has somebody go this way?

Sorry cuz i know this is more like a medical question i just couldnt find the right sub for it, hoping for some cell experts in here who can solve this mystery 😅

For example, vectors in ECG, work and force in muscles, etc. (Please give me the worst ones, from motion to quantum physics idk, so I can have an idea).

I'm just debating whether I should sign up for a physics introductory course during the summer as I'm going into undergrad with no physics knowledge at all, and I wish to study physiology.

My hands are unbelievably shaky in the lab. I need to have steady hands. I’ve kind of been bullied for how shaky my hands are in labs: from introductory biology, to advanced cell bio and mol gen upper level labs. It is so annoying. I’m currently doing Bio research as an undergrad and it’s genuinely killing me dude. My family is broke so “going to the Doctor” isn’t something that is possible or realistic, and that would be unbelievably selfish for me to do. I need to have steady hands and this is pissing me off tremendously.

Is it true that male frogs can actually push the eggs out of a dead female and fertilize them successfully? It’s kinda a horrifying idea. I read it once and I am wondering if it was true.

Are there any competitions for undergrads in the field of bio? I know there is Olympiad but those are only for high school students

as reticulate venation has a mesh of vein network akin to capillaries ... so will the absorption and diffusion of water and nutrients be more efficient compare to parallel ? is there any difference between the rate of absorption ?

I have searched around for a while now and I am looking for a source that have investigated how much or if pollination is important for the meat industry.

The meat we eat also needs to eat and grazing animals need a variety of plants to stay healthy, not just grass. I realize this might vary by country. Where I am from (Norway), there are regulations to how much fodder (soybean and other "artificial" food sources) you can feed your cattle for the meat to qualify certain standards. Fresh grass containing clover and other flowers is important part of bovine diet in some countries where fodder is not used as much. The meat and the live animals are certainly a lot healthier and tastes better where they to graze on wildflowers. My point being, in countries where fresh hay is a big part of the diet, how much would the meat/dairy industry suffer, if at all, by the decline of pollinators.

YES, I do realize hay is mostly self pollinated grass, but the wildflowers that grow in hayfields add important and good nutrients to the diet. Some places wildflower fields are cut for animal feed as well.

I welcome discussion, but I'm mainly after a sources that have investigated this.

Hello, everyone!

As the title says, I'm currently job hunting for almost a month now. I'm from the Philippines and I've earned a degree in BS Biology. I love my course and I'm keen on pursuing a career out of it. However, it's been challenging to find a job opportunity in our field, or maybe just here in my country.

I'm on the edge of doing a career shift, with whatever that comes out of more urgent job opportunities out there. I can't support myself and my family for long and I desperately need a job.

I don't want to lose heart on Biology but it's been very difficult. Please take this post as you will. I need a place to vent out but if you have any leads for possible job opportunities, I'd be very happy to accept.

Have a nice day, everyone!