Overaeration lungs: Hyperaeration means lungs contain larger amount of air than normally expected. Has many causes. In children can be seen with diseases causing air trapping such as bronchiolitis, asthma, cystic fibrosis, congenital heart disease, early aspiration, and metabolic acidosis.
Barbara McClintock's World Discovering Jumping Genes For the first half of the 20th century, genes were seen as objects with fixed positions on the chromosomes. However, in the 1950s, Barbara McClintock showed that certain DNA fragments, termed transposons, can be activated to jump from one position on a chromosome to another.
One is that transposons are, in a sense, friendly. For example, as I wrote about a couple of weeks ago, a recent study found that jumping genes are more active in some types of neurons than others, suggesting that the brain has evolved ways of using these elements for its own (normal, healthy) specialization.n a study published last year, his group showed that jumping genes normally bind to TDP-43, a protein that has been linked to frontotemporal dementia and Lou Gehrigâs disease. In postmortem brain tissue from people who had frontotemporal dementia, however, the transposons do not bind to TDP-43.