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.
Transposable elements (TEs), also known as jumping genes , are DNA sequences that move from one location on the genome to another.These elements were first identified more than 50 years ago by geneticist Barbara McClintock of Cold Spring Harbor Laboratory in New York.ne of the roles of terminal inverted repeats is to be recognized by transposase. Figure 3: The structure of a DNA transposon. DNA transposons, also known as class 2 transposable elements, are flanked at both ends by terminal inverted repeats.