| How big dogs have much shorter lifespans than smaller dogs, is it the same for humans? Say a 6' 7" inch man vs a 5' 5" man? Posted: 20 Jun 2022 09:30 AM PDT |
| If I got a blood transfusion, then had a dna test done on my blood. Would it be my dna or the blood donors? Posted: 19 Jun 2022 06:05 PM PDT My kid has asked me "if I get someone else's blood and they're Italian, does that mean I have Italian blood". Which raises a good point. If she needs a blood transfusion and we then did a 23 and me type test but with blood (not the saliva test). What results are we going to get back? The donors heritage or hers? Or a bit of both. Whose dna is in that blood? If she drops some blood at a crime scene and the police swab it for evidence. Will it match to her dna, will it have both sets of dna? If it shows as the donors dna in the blood, does it change back to her blood over time? What about organ donation? That organ will always have the dna of the donor yes? Sorry if formatting is rubbish - I'm in mobile. submitted by /u/DiscombobulatedBank6 [link] [comments] |
| Does fighting a viral infection use up minerals and vitamins like zinc and vitamin D, leading to low levels of them? If so how severely? Posted: 19 Jun 2022 09:16 AM PDT |
| Which vitamin or mineral supplements actually have evidence for benefits? Posted: 20 Jun 2022 01:37 AM PDT I've always heard 90% or more is bogus marketing, and the literature can be somewhat vague on this subject. I have heard that zinc is effective for immune function even if taken after symptoms start, is this true? Also, are there any that can benefit even if taken to surplus? submitted by /u/jammerjoint [link] [comments] |
| how does the body wake itself up during a nightmare? Posted: 20 Jun 2022 03:56 AM PDT i used to struggle with chronic nightmares. today, they only happen on occasion. whenever the nightmare seems to reach its "peak"—before death or some kind of attack, etc.—i wake up. how is my body able to wake itself up during these moments? submitted by /u/netflixandchild [link] [comments] |
| Are callouses made of living tissue? Posted: 19 Jun 2022 06:27 AM PDT |
| Why are lemon seeds seemingly randomly distributed about the center of the lemon? Posted: 19 Jun 2022 07:37 AM PDT Lemons (which I buy from the market) have a high degree of axial symmetry. Rotate them around their major axis, and they're usually pretty similar from all angles. Cut one in half along the minor axis, and the segments are each about the same angular size. The albedo is pretty circular and uniform, too. And then, the seeds. There are usually fewer than one per segment. And when that's the case, you just have 1 in one segment, another in another, and they jut off in seemingly random angles. Why the absence of azimuthal symmetry for seeds? submitted by /u/dilfybro [link] [comments] |
| Why is having high blood pressure bad for you? Posted: 20 Jun 2022 09:00 AM PDT |
| How does sunscreen protect my skin if it’s clear? It blocks UV— so if I were, say an insect that sees in the UV spectrum, would sunblocked skin look extra bright because UV is reflected, or extra dark because UV is absorbed? Posted: 19 Jun 2022 04:22 AM PDT |
| How is AN SHBG test done? Posted: 20 Jun 2022 09:19 AM PDT When I always search for answers the internet just tells me that is done by a blood sample and using a needle. What I'm looking for is the scientific procedure, what is used, a microscope, some type of machine, a mathematical formula... ? How do you go from having the blood to having a particular number and result on a paper. And as well I would appreciate if somebody told me how to search for this type of more specific I formation on the future, what should I type on the Google bar search to find this information. Kind regards. submitted by /u/Complex-Opening-9638 [link] [comments] |
| Can skin detect different “colours” of infrared light? Posted: 20 Jun 2022 04:51 AM PDT I understand that infrared wavelengths are felt as heat but is there different sensations (ignoring temperature) that would allow one to determine different "colours"? Thought came about from experiencing my cars heated seats and feeling that it felt different to how my heater at home would feel. Perhaps a different bandwidth of infrared? submitted by /u/rruckley [link] [comments] |
| How do proteins made by mRNA vaccines get to where they need to go? Posted: 20 Jun 2022 07:33 AM PDT The technology/strategy behind mRNA vaccines is truly remarkable, but many explanations I've read seem to skip over a crucial logical step that is the basis of my question. Once the mRNA enters a cell and the cell begins producing the protein that the mRNA encodes for, what are the processes between this stage and the stage of the immune system interacting with it? The state of affairs at this stage is a foreign protein inside the cell and it needs to end up in the "hands off the immune system". If the protein in question is say the so-called "spike protein" of COVID-19, how does it get outside of the cell or to the surface of the cell? Cells are complicatedcitation needed and usually have many interconnected parts like proteins helping other proteins get where they need to go or to fold in a particular way. Does the inherent shape/structure of the spike protein in this case make it thermodynamically favorable to embed itself in the cell's membrane and express itself outward? Proteins don't generally just leak out of cells so my current best guess is that it's presented by the cell in some way. Assuming this is the case, does that immune system now recognize that cell as foreign and destroy it (and thus 'read' the spike protein)? Thanks for anyone's time. submitted by /u/Twink_Ass_Bitch [link] [comments] |
| How does indexing work in the brain? Posted: 20 Jun 2022 07:16 AM PDT What are the best current theories on how a human brain indexes interconnected ideas? Example of the type of indexing to which I'm referring: my mind will often unconsciously start playing music related to something which I've just seen. Sometimes, I'll realize that I'm remembering a song without having noted the trigger, but by reviewing what the song is and what I just did, I can guess what the trigger is. E.g., I read the word "aquarium" and hear the music for Jolly Roger Bay. submitted by /u/ExtraProfound [link] [comments] |
| Why do anti fungal toe medication have the ability to impact kidney functions when they are an external application? Posted: 18 Jun 2022 09:07 PM PDT |
| Stable Cell Line transfection, with non viral naked plasmid MOA? Posted: 20 Jun 2022 01:50 PM PDT Something I have never understood. How do nonviral plasmids incorporate stably into cellular genomic dna of a cell. I understand viral plasmid delivery systems but how do regular plasmids get stably incorporated. My understanding is that they do but it's very low rate of occurrence and it happens somewhat randomly. Thanks submitted by /u/ontheceiling315716 [link] [comments] |
| Do we know approximate lifespans of dinosaurs? Posted: 19 Jun 2022 10:20 PM PDT I just watched the new Jurassic World movie and while I understand it wasn't scientifically accurate, it made me wonder if dinosaurs actually lived in current times and reproduced, how fast would it take them? Generally, most things on Earth have lifespans seemingly corresponding to their size. Some flies live for days while larger animals live for years. Of course there are exceptions, but its kind of a general rule. Do scientists know, or can estimate, how long would, for example, a T-Rex take from egg to hatching, and from hatchling to natural end of life? Are we talking a few decades, a hundred years, more than a hundred? Something like the Brachiosaurus must take many decades to reach full maturity right? If someone told me it took them 200 years to grow to that size I would not question it. submitted by /u/MelonElbows [link] [comments] |
| Why do major mountain ranges in the US predominantly run north-south but not east-west? Posted: 20 Jun 2022 01:15 AM PDT |
| Does the vast amount of air-conditioning units running year round have an affect on global warming? They seem like they produce more heat than cool air overall and with temperatures rising globaly they are more and more common. Posted: 19 Jun 2022 08:17 AM PDT |
| Why do humans only create their own vitamin D? Posted: 20 Jun 2022 02:48 AM PDT |
| Is a virus’s mutation rate independent from their host cell? Posted: 20 Jun 2022 11:15 AM PDT Excluding any environmental mutation factors, do virus partially or wholly inherit any mutations based on the host cell's replication machinery? submitted by /u/ShadowVortex888 [link] [comments] |
| Are mental disorders associated with higher socioeconomic status? Posted: 20 Jun 2022 05:15 AM PDT Some papers claimed that if you have low latent inhibition and a high IQ, you are creative or a hypergenius. In the past I also read (or misread) an other paper claiming high IQ is associated with higher income. Are there any studies that link mental disorders with higher income? submitted by /u/Ry_uk [link] [comments] |
| Why the length of day/solar angle are almost constant around solstices and vary the most around equinoxes ? Posted: 20 Jun 2022 04:25 AM PDT |
| Do CAM plants open their stomata right at sundown, or do they wait until total darkness? Posted: 20 Jun 2022 06:10 AM PDT |
| Do cross links or lesions in DNA prohibit accurate next gen sequencing of those regions? Posted: 20 Jun 2022 04:34 AM PDT |
| Does Omega Centauri have exo-planets? Posted: 20 Jun 2022 02:07 AM PDT I don't mean habitable planets. I'm just asking about any kind of terrestrial planets or gas-giants. I tried looking it up and couldn't find confirmation on the existence of exo-planets in the globular cluster. I was hoping there might be some astronomers out there with an answer. submitted by /u/SUPER_SECRET_AGENT_Q [link] [comments] |
