l07971

Well, if it's somewhat interesting to me, I might engage in an argument, like if someone is proposing a "perpetuum mobile". I like to go through it and see the mistakes, if I can, of course. But, sometimes the question is so obviously wrong that I ignore it, since the one who posted it obviosly doesn't understand the basics. I wish people would be more rational and sceptical.

"Quantum misticism" is a name given to a bunch of "claims" made by people who don't understand one bit of quantum mechanics, or the amazing math behind it. They have no idea what they talk about. If, at any moment, there's a finite amount of a material on Earth, then, it cannot be unlimited, unless it is being created in some way. Gold, platinum and other elements cannot be created on Earth, since new elements can only be created inside stars or during their explosions. So, no, those aren't "renewable" elements on Earth. However, new elements are constantly being created in universe, so it is "renewable" in that sense.

I know I'm annoying, but is this the final answer or a "hint"? I know that RNA polymerase is an enzyme which initiates the "transcription" process. Since it's dependant on DNA, would that mean that the final result will be "mouse polypeptides" (mouse DNA was in the test tube)?

I understand why you don't give quick answers, as that way the one who questions learns nothing and just lies to himself that he understands the subject. However, as I said, this question isn't for me, and I would have prefered if you had given me a "simple" answer, rather than 5 answers. By "simple" answer I didn't mean "a) mice polypeptid", but rather something like "human DNA gets unwind and mRNA is synthetised from certain nucleids, etc.".

Well, I think that, normally, mRNA is synthetised from free nucleotides, present in the nucleus of the cell, i.e. adenine, guanine, etc. However, since I dont think there are free nucleotides in the test tube, they must come from some "dissolved" polynucleotide chain, but which..? (rabbit mRNA, human tRNA ?). But even so, aren't the nucleotides of different species the same? Why would it matter if it comes from a rabbit or human? It will still be adenine in mRNA, where thymine was in DNA. Anyway, I wanted the get the answer somewhat quickly, however it didn't go that way. I feel like I'm taking molecular biology course myself. At least it was fun. Thanks.

Actually, I think I understand the basics: > The DNA gets unwind and the mRNA is synthetised next to the DNA bases from complementary bases. > Then mRNA leaves the nucleus and goes to ribosomes where it attaches to the smaller subunit (not sure, though). > tRNA "brings" the amino-acids which "fit" to mRNA 3-base code (anti-codon, I think) > These amino-acids get polymerised by enzymes and detach from ribosomes. > This chain then gets twisted and what not to get the fully functional protein. I'm sure it's oversimplified, but I think I got the gist. This is why I think the final proteins will be "mice proteins", since they must hae been created according to "mouse DNA" instructions.

That's because it's one of the questions for preparing for those that wish to study molecular biology on college. It's for my friend, who's about to go to university this year. I'm going to university this year too, but physics, so I'm not THAT familiar with genetics. I thought it would be mice proteins, since the "instructions" for them must come from the only DNA in the test tube. About your questions, I'm not sure I can answer them.

Brett, I'm afraid it's more complicated that that, but thanks anyway. I think it depends on the way the process of translation works. I think the polypeptyde chains will be those of a mouse, because its DNA was "transcribed" onto the mRNA, but I could be wrong. That's why I'm asking...

If you place a DNA of a mouse, mRNA of a rabbit, ribosomes of a hydra and tRNA of a human in a test tube, and place it in optimal conditions for translation to occur, which imitate the conditions inside cell cytoplasm, you will get a polypeptyde chain of which animal: mouse, rabbit, hydra or human?