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.
These principles were first explained by Gregor Mendel, an Augustinian friar and scientist from Moravia, in the 1850s. Mendel performed experiments using common pea plants. He observed inheritance patterns that arose when he mated, or crossed, parents with known genetic traits, and then allowed subsequent generations of offspring to self-pollinate.