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.
Only recently have biologists begun to entertain the possibility that this so-called junk DNA might not be junk after all. In fact, scientists now believe that TEs make up more than 40% of the human genome (Smit, 1999).a Aa Aa. Transposable elements (TEs), also known as jumping genes  or transposons, are sequences of DNA that move (or jump) from one location in the genome to another.