Flail chest: A condition that occurs when enough ribs are broken (usually from a crush injury) to compromise the rigidity of the chest wall.On inspiration, the chest wall moves inward instead of outward, and it does the opposite on expiration.lail chest: A condition that occurs when enough ribs are broken (usually from a crush injury) to compromise the rigidity of the chest wall.
The simple summary is that DNA makes RNA, and then RNA makes proteins. DNA, RNA and proteins all consist of a repeating structure of related building blocks (nucleotides in the case of DNA and RNA, amino acids in the case of proteins). In general, they are all unbranched polymers, and so can be represented in the form of a string.
DNA and RNA are strands of nucleotides. DNA is a double-stranded  nucleotide, and RNA is a single-stranded nucleotide.    Both DNA and RNA are known as nucleic acids.â¦ DNA in most cases has  control on the genetic information of the cell where as RNA is  produced by DNA strands to perform specific functions.here are many types of RNA including mRNA, tRNA, and rRNA. mRNA and tRNA are involved in protein synthesis and the process of â¦ translation. mRNA and tRNA bind to the ribosome and form polypeptides or proteins that are released into the cell.