What are the similarities and differences in DNA, RNA, and proteins?
830516
DNA and RNA can really be classified into one category and proteins into another.  Proteins have subunits of amino acids, which are determined by sets of three DNA bases (A, T, G or C).  There are 20 amino acids that can be incorporated into all of the proteins in all the organisms in the world.  DNA and RNA are composed of nucleic acids.  DNA uses A,T,G and C, whereas RNA uses A, U, G and C.  DNA is typically double stranded, whereas RNA is single stranded.  Both DNA and RNA bases are made up of a sugar, a phosphate group and a base.  One major difference between DNA and RNA chains is that DNA uses the sugar deoxyribose whereas RNA uses ribose -- these are both cyclic 5-carbon sugars, the only difference is some side groups hanging off the main chain and their orientation.  DNA's the stuff that your chromosomes are made up of -- it's the storage unit for all of your genetic information.  RNA is used in the transport of this information outside of the nucleus into the cytoplasm, where it is then involved in the process that links amino acids together into the final protein (this whole sequence was originally dictated by DNA).
565569
two dna sequences (in two species) that are similar because they share a common ancestor (and by extension two protein or RNA sequences that are similar for the same reason). Versus two sequences that might be similar because of convergence - an unlikely event in most contexts. It's the same concept as homology and analogy in anatomical or behavioral features.
803356
As you know, mRNA has copied the protein-making instructions from the DNA. Well, tRNA brings the required amino acids to build the primary structure of the protein, as is stated by the instructions on the mRNA.
298787
The differences between DNA/RNA:\n\n*DNA stays in the nucleus, while the mRNA leaves\n*RNA contains oxygen, while DNA doesn't (DEOXY- no oxygen)\n*DNA has the nitrogen bases Adenine, Thymine, Guanine, and Cytosine. RNA has those also, but instead of Thymine it has Uracil\n*RNA is single-stranded while DNA is double-stranded
52398
All bases are present in DNA except URACIL and in RNA it is THYMINE. Adenine is joined with Thymine in DNA, as well as Cytosine is with Guanine. In RNA, The only difference is that Adenine Joins with Uracil. Guanine and Cytosine still Join together.
527995
Particles, Amino acids (compounds), Proteins, Cells is as specific as I can get.  Seems this question is incomplete.
267305
human body and molecular biology..
181424
There are five Nitrogenous bases found in Nucleic acids\n2 are purines and 3 are pyramidines\nIn DNA There are \nPurines - Adinine, Guanine\nPyramidines - Thymine, Cytocine\n\nIn RNA There are\nPurines - Adinine, Guanine\nPyramidines- Uracile, Cytocine\n\n[DNA = DeoxyRibo Nucleic Acid]\n[RNA = Ribo Nuceic Acid]
612766
RNA is short hand for Ribonucleic Acid. RNA has a similar structural appearance to DNA (Deoxyribonucleic Acid). You can read about the chemical structure at the site referenced below.\n\nRNA crops up in several different cell locales from the nucleus to the ribosomes and appears to serve in a variety of cell roles. The basic function most often noted is that of a messenger or transfer template upon which proteins are built. The information for this construction comes from the DNA which unzips long enough for these RNA templates to be formed.\n\nThe less noted ribosomal RNA may well be more important in that the ribosomes are protein factories.  And protein manufacturing is kind of where it is at.  It just that text book writers have to draw the line somewhere on how much information about how many cell types is going to be discussed.  If we are talking the brain cells for instance there is some evidence to suggest RNA might well play a part in memory formation.  \n\nThis is seriously cooked down discussion of a key chemical player in cellular dance of life. If you take up where your book left off I suggest a visit to your local library. The subject area you want is biochemistry or molecular biology.  For the latest info your next step would be to hit the stacks in your local university library to review the science journals.  Citation index is big help here.
39430
Some believe that before DNA and protein, life existed in the form of RNA, evidenced by catalytic RNA in existence today (forming part of the ribosome: a protein building cellular machine) \n\nLess philosophically, amino acids (of which there are 20 types) are put together in sequences predetermined by DNA sequences. These DNA sequences are transcribed (copied) into an intermediary molecule of RNA, which is "read" by the ribosome (which gathers the correct amino acids to build the protein)
435654
DNA has the original code (for proteins) and RNA is the copy(of DNA) that leaves from the nucleus. Because DNA can't leave the nucleus so RNA copies the "code" from DNA.
128508
nucleic acids. Deoxyribonucleicacids(DNA), ribonucleicacids (RNA), inside the nucleus it contain the chemical nucleic acids.
887935
The DNA is linked by the 4 bases G,C,A,T \nG and C pair together and A and T pair together they are held together by hydrogen bonds. G and C have 3 hydrogen bonds A and T have 2.\nThese form the double helix which is the DNA structure.
916476
Nucleic acids are acidic macromolecules found in the nucleus of a cell. They are DNA and RNA. The monomer of a nucleic acid is a nucleotide. It consists of a sugar (ribose for RNA or beoxyribose for DNA) a phosphate and a base. The four possible bases are (for DNA): Adenine, Guaniner, Cytosine, and Thymine. In RNA Thymine is replaced with Uracil, and the other 3 remain the same. Because there are four types of bases, there are four types of nucleotides.Since the phosphate and the sugar and constant, they are the backbone of a nucleotide. When nucleotides bond to form a long chain (a polynucleotide), the chain is a strand of DNA (which is double-stranded) or RNA (single-stranded). \nHope this helps ;-)
313675
do you mean interactions BETWEEN nucleic acids and proteins?  If so there's a lot of ways you can study that - you can do a footprint analysis - digest the nucleic acid in the presence of the protein and see what piece gets protected to see where the protein binds if you know the identity of the two interacting molecules.  If you don't know their identity you can try a gel-shift assay where DNA will move at different rates on a gel in the presence and absence of various proteins.  If you know the protein but not the DNA you can try an affinity column with the protein immobilized and then try to determine which DNA sequences bind.  You can also try to determine the crystal structure of a co-crystal if you have a lot of the two materials.  good luck!
251724
They both have to do with RNA... I had this on a bio quiz but I forgot...\n\nMRNA: RNA transcribed from the DNA making up a gene. It transmits genetic information from the nucleus to the cytoplasm, where it directs the synthesis of proteins.\n\nTRNA: RNA molecules that carry amino acids to sites on ribosomes where proteins are synthesized.
273006
mRNA:\n\nRNA that serves as a template for protein synthesis\n\nDNA:\n\nThe material inside the nucleus of cells that carries genetic information. The scientific name for DNA is deoxyribonucleic acid.