But that seems contradictory, I'll try to explain why.
1. We have the fact that an outsider observer will never witness the infalling observer cross the event horizon because time slows down to almost zero as they approach the event horizon, from the perspective of the outsider observer, hence...
It takes infinite amount of time to cross the event horizon from an outsider's perspective. But black holes eventually decay from Hawking radiation. So if you wait long enough a black hole won't exist anymore, as it would have decayed into nothing.
The in-falling observer witnesses infinite...
In almost all these images you seen loops (claudin, occludin) between adjacent cells that are almost touching, but not. My professor may have said (if I understood correctly) that they have hydrogen bonds between those loops. I think it's for human cells. For example between adjacent epithelial...
I know tight junctions between adjacent cells are very strong and the gaps are practically zero. But what types of chemical bonds are they? Are they covalent bonds or hydrogen or ionic bonds? I mean between the claudin and occludin proteins.
Regarding this:
How is the immediate early gene able to transcribe an mRNA which then goes on to translate a protein if "protein synthesis has been experimentally blocked with drugs"? Which part of protein synthesis has been blocked? The transcription? Translation? Isn't it called "protein...
Ok, when a one-way road is "open to the outside" of a city, does that mean people are only allowed to enter the city or only allowed to exit? That is my question.
I can give you many more examples. When a plumber's one-way pipe is "open to the outside" of a bathtub, does that mean water can only...
Thanks but that has nothing to do with what I asked. I asked if "open to the outside" means outside things can go in or inside things can go out. This is in general, it doesn't have to be strictly about cells, it can be anything in everyday life. I'm not talking about "shape" I'm talking about...
Summary:: What does this mean?
Discussion changed to meaning of words - moved from Biology
When a channel in a plasma membrane (or really anything else in everyday life) is "open to the outside" of the membrane (or wall), what does that mean? Does that mean if you're standing outside of it then...
I fully understand this.
I don't fully understand this.
So are all DNA→RNA transcriptions in the body either 'early' or 'late'? Just those two categories? Or are 'early' and 'late' special types of transcriptions?
What do you mean "they don't require new proteins to be synthesized"? Who said...
So I'm studying the MAPK pathway and Erk (MAPK) activates IEGs (Immediate Early response Genes) such as Myc, Fos and Jun. What are IEGs?
I was told:
IEGs:
- expressed at the mRNA level (what does this mean? what's a "level"? what does "expressed" mean?)
- and hence don't require protein...
Ok I hear this all the time. Why not? Is the brain some sort of magical unchangeable thing? I can improve my car's efficiency by modifying the engine so that it's better than it was when I bought it new, but can't modify my brain? Why can't I add more corpus collosum? I can certainly remove...
I bought a can of soft drink and was wondering whether I should spray 100% isopropyl on it before putting my mouth on it to drink. I did spray and it smelt bad but I wiped it off and drank the can. Is that unsafe or is it the opposite, safer than drinking without spraying? Would it kill corona...