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 All cellular (living) organisms contain both DNA and RNA. Viruses, which are generally not considered to be living, contain one or the other.Here are some major â¦ differences between RNA and DNA: With the exception of a few viruses, RNA is a single-stranded molecule while DNA is double-stranded.The two DNA chains are connected by hydrogen bonds between nitrogenous bases.DNA can is replicated during cell division; RNA is not.NA and RNA All cellular (living) organisms contain both DNA and RNA. Viruses, which are generally not considered to be living, contain one or the other.