Joseph Vissarionovich Stalin was a Soviet revolutionary and political leader of Georgian ethnicity. Governing the Soviet Union as its dictator from the mid-1920s until his death in 1953, he served as General Secretary of the Central Committee of the Communist Party of the Soviet Union from 1922 to 1952 and as Premier of the Soviet Union from 1941 to 1953. Ideologically a Marxist and a Leninist, Stalin helped to formalise these ideas as MarxismâLeninism while his own policies became known ...
DNA is extracted from human cells for a variety of reasons. With a pure sample of DNA you can test a newborn for a genetic disease, analyze forensic evidence, or study a gene involved in cancer. Try this virtual laboratory to perform a cheek swab and extract DNA from human cells. Javascript is required to view this content.
DNA is only important in that it contains the information the cell needs to make proteins. Proteins are simply linear polymers of amino acids that spontaneously fold up into compact 3D shapes following basic principles of chemistry and physics.Humans are made up of approximately 50,000 different kinds of proteins.very cell in your body contains 3.2 billion basepairs of DNA. The sequence of nucleotides in this DNA determines the sequence of amino acids in your proteins. Proteins act as nano-scale molecular machines that carry out countless different tasks in your body.