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.
Both have DNA as their genetic material (it's DNA that tells cells what kind of cells they should be). Both are covered by a cell membrane. Both contain RNA. Both are made from the same basic chemicals: carbohydrates, proteins, nucleic acid, minerals, fats and vitamins. Both have ribosomes (the structures on which proteins are made).