Mitochondrial matrix
The cytosolic, intermembrane space, compartment has a water content of 3.8 μl/mg protein, while the mitochondrial matrix 0.8 μl/mg protein. It is not known how mitochondria maintain osmotic balance across the inner mitochondrial membrane, although the membrane contains aquaporins that are believed to be conduits for regulated water transport. Mitochondrial matrix has a pH of about 7.8. Mitochondrial DNA was discovered by Nash and Margit in 1963. One to many double stranded mainly circular DNA is present in mitochondrial matrix. Mitochondrial DNA is 1% of total DNA of a cell. It is rich in Guanine and Cytosine content. Mitochondria of mammals have 55s ribosomes.
Mendel Lectures
The Mendel Lectures are also connected with the establishment of the Mendel Museum and revitalization of scientific activities in the Augustinian Abbey in Old Brno in 2003 in the event of the 50th anniversary of the discovery of the structure of deoxyribonucleic acid (DNA). The British Council donated a copy of the original photograph of James Watson and Francis Crick and a copy of their model of DNA from 1953 is on loan from Gustav Ammerer to the Mendel Museum.