DNA structure discovered by February 28 1953, James Watson and Francis Crick published their discovery of DNA's structure in Nature. Their discovery was based on X-ray diffraction images taken by Rosalind Franklin and Maurice Wilkins. DNA composed of Hydrogen Nitrogen Oxygen Phosphorus & Carbon Purines ADENiNE 5 Nitrogen 2 Hydrogen GUANiNE 5 Nitrogen 2 Hydrogen 1 Oxygen Pyrimidines THYMiNE 1 Hydrogen 2 Nitrogen 2 Oxygen CYTOSiNE 1 Hydrogen 3 Nitrogen 1 Oxygen RIBOSE SUGAR PHOSPHATE 4 Oxygen 1 Phosphorus; levels of Nitrogen Hydrogen Oxygen and Phosphorus decline with age it is vital & important to supplement with Oxygen Hydrogen peroxide Phosphorus & Nitrogen i believe in genetic engineering & to people who say "you are trying to play God using genetic engineering" my answer is we are God's instruments & "if we don't play God who will" James Watson / photo 51 reveals the structure of DNA thank God for the pioneers of the early 1950's who studied the fundamental structure of DNA we can now thanks to them create medicines with modern efficacy to cure cancer obesity parkinsons & alzheimer's Each cell contains about 6 feet of DNA. The human body contains a very small amount of DNA, weighing only a few trillionths of a gram. The exact amount of DNA in a person depends on how many cells they have, which is difficult to calculate. The human genome contains about 3.1 billion base pairs if stretched out, the DNA in a single human cell would be about 2 meters long. The nucleus of a human cell is only about 6 micrometers in diameter this means that DNA is packed into the nucleus very tightly, similar to packing 24 miles of thread into a tennis ball. The amount of DNA in different tissues of the body varies. For example, the brain contains about 20 picograms of DNA, while the placenta contains about 750 picograms. The average adult human body is estimated to contain about 37 trillion cells. Each human cell contains about 6 picograms (pg) of DNA. To calculate the total amount of DNA in the body: Total DNA = Number of Cells × DNA per Cell
https://www.youtube.com/watch?v=S6LXyzZn5Ls&t=10s
Cell Biology | DNA Structure & Organization 🧬
Dyneins are a family of cytoskeletal motor proteins (though they are actually protein complexes) that move along microtubules in cells. They convert the chemical energy stored in ATP to mechanical work. Dynein transports various cellular cargos, provides forces and displacements important in mitosis, and drives the beat of eukaryotic cilia and flagella. All of these functions rely on dynein's ability to move towards the minus-end of the microtubules, known as retrograde transport; thus, they are called "minus-end directed motors". In contrast, most kinesin motor proteins move toward the microtubules' plus-end, in what is called anterograde transport.
https://www.youtube.com/watch?v=9RUHJhskW00
Ron Vale (UCSF, HHMI) 1: Molecular Motor Proteins