Scream The News ~Asura
People Are Human-Bacteria Hybrid
“Most of the cells in your body are not your own, nor are they even human. They are bacterial. From the invisible strands of fungi waiting to sprout between our toes, to the kilogram of bacterial matter in our guts, we are best viewed as walking “superorganisms,” highly complex conglomerations of human cells, bacteria, fungi and viruses.”
Humans Carry More Bacterial Cells than Human Ones
“All the bacteria living inside you would fill a half-gallon jug; there are 10 times more bacterial cells in your body than human cells, according to Carolyn Bohach, a microbiologist at the University of Idaho (U.I.), along with other estimates from scientific studies. (Despite their vast numbers, bacteria don’t take up that much space because bacteria are far smaller than human cells.) Although that sounds pretty gross, it’s actually a very good thing.”
The Normal Bacterial Flora of Humans
“In a healthy animal, the internal tissues, e.g. blood, brain, muscle, etc., are normally free of microorganisms. However, the surface tissues, i.e., skin and mucous membranes, are constantly in contact with environmental organisms and become readily colonized by various microbial species. The mixture of organisms regularly found at any anatomical site is referred to as the normal flora, except by researchers in the field who prefer the term “indigenous microbiota”. The normal flora of humans consists of a few eucaryotic fungi and protists, but bacteria are the most numerous and obvious microbial components of the normal flora.”
Bacterial DNA in Human Genomes
A new study finds strong evidence that bacteria can transfer genes into human genomes, especially in cancer cells.
“It really does seem that human genome sequence data from somatic cells show signs of LGT events from bacteria, and so do cancer cells,” said Jonathan Eisen from University of California, Davis, who coordinated the peer review of the new study but was not involved in the work. “Wild stuff does happen.”
“Two billion years ago, around the time atmospheric oxygen levels were rising, one cell engulfed another, and instead of becoming lunch, the ingestee became an Earth-changer and, eventually, a vital part of you: mitochondria.
These microscopic cell inhabitants/engines allowed their host cell to suddenly begin to burn oxygen when digesting their food, an energy source that vastly expanded the amount of energy they could harvest from a given morsel of food. The magic born of this union helped enable nearly all multicellular life on Earth to evolve and get big, complicated, and, in our case, hairy and prone to back problems.”
Why is mitochondrial DNA traced only through women?