
Length of uncoiled human DNA - Skeptics Stack Exchange
So the best estimate is 9.5 × 10 12 cells with chromosomal DNA. According to Lehninger Principles of Biochemistry the length of DNA in a diploid human cell is 2 meters. So the total length of cellular DNA in human is 1.9 × 10 13 meters. This is about 3 times the distance to Pluto, the distance to Pluto averaging 6.1 × 10 12 meters.
Is 8% of human DNA from viruses? - Skeptics Stack Exchange
Mar 16, 2016 · Normal viruses infect cells in order to take advantage of cellular mechanisms to reproduce themselves. A class of viruses known as "retroviruses" have a slightly peculiar mechanism to achieve this - they synthesise a special enzyme called "reverse transcriptase", which translates their own RNA into DNA which is incorporated into the host cell's genome.
dna - Is there more genetic difference between men and women …
In other words, while the quantity of changes may be the same, the quality is different. Even though we share most of our genes with a chimpanzee, lots of the chimp's genes have changed in ways not seen in people. These changes make a chimp a chimp and a human a human."*
Are viruses man-made nano-technology? - Skeptics Stack Exchange
Apr 8, 2013 · The DNA was essentially the same as the bacterium's, but with some minor changes, including a "watermark" to prove that the reproducing DNA was indeed the artificial one. Note that it still needed the rest of the cell to work.
china - Is there any DNA evidence that show that Chinese …
Feb 13, 2016 · The astonishing finding by Novick et al that Maya DNA is closer to Chinese DNA than Maya DNA is to N, Central or S American DNA. And so on and so forth; So is there any DNA evidence that show that Chinese discovered America before Columbus? I am well aware that mainstream scientific community doesn't think highly of Gavin Menzies' claim in general.
history - Ancestry tracking DNA tests - Skeptics Stack Exchange
Jul 10, 2017 · Your DNA can tell you where your ancestors lived more than 500 years ago. See a percentage breakdown by region, including eastern Asia, Sub-Saharan Africa, Europe and more. We look at 31 populations worldwide, and we will continue to …
Does 528 Hz "facilitate DNA repair"? - Skeptics Stack Exchange
There is a somewhat common belief that playing a tone at 528Hz can help to facilitate DNA repair. Examples: The frequency of 528 Hz supposedly has healing effects on DNA. The frequency seems to influence the water molecules that surround the …
Does "The Fossil Record" evidence sufficiently support evolution?
Feb 25, 2011 · The species problem is in a sense worse then when Darwin wrote "I was much struck how entirely vague and arbitrary is the distinction between species and varieties" in On the Origin of Species, and DNA cannot draw a line. Mendelian genetics forced significant changes to Darwinian theory to bring it into the modern synthesis but, despite this ...
Do corporations own human DNA sequences? - Skeptics Stack …
The major issue is that of patents of individual genes, particularly in the United States. A study in 2005 published in Science suggested 20% of human gene DNA sequences were patented and that some genes were patented as many as 20 times. But (in theory at least) each patent is not of the gene itself, but of its use for a particular purpose.
Is Lamarckian evolution still considered credible?
In nearly all of these examples, the changes disappear after one or two generations, so they couldn’t effect permanent evolutionary change. […] I am not aware of a single case in which an adaptive change in an organism – or any change that has been fixed in a species – rests on inheritance that is not based on changes in the DNA.