Reich's plan is to find ancient DNA from every culture known to archaeology in the world. Ultimately, he hopes to build a genetic atlas of humanity over the past 50…
Humans attempted to reanimate the skulls of our dead for thousands of years. With the help of modern technology and ancient DNA, it’s now both an art and a science.
Bumps called quill barbs on the bones mean the dinosaur had feathers. Some Velociraptor specimens have these barbs. Technology plays a part, too. Computer simulations help determine how fast a dinosaur could move and how it used its limbs. Researchers can also use computer models to reconstruct ...
Try to make it through a day without using or hearing the word "evolution" and you'll see just how widespread this theory is. Evolution is fascinating because it attempts to answer one of the most basic human questions: Where did life, and human beings, come from? The theory of ...
Scientists use reference panels — genetic data from people with known ancestry, collected by the testing company or available in a public database — to determine regions of the world where different genetic variants are more or less common. Fragments of DNA from the test bind to the sites ...
Serial measurement of the acute phase protein SAA (or C-reactive protein as a surrogate) is required to determine the degree of ongoing inflammation and is used to monitor response to anti-inflammatory treatment. Outcome in AA is directly related to SAA concentration with sustained suppression of ...
To determine the area of settlement of horses, molecular biologists studied horses’ DNA from both continents. From 262 samples of bones and teeth, they selected 78 with sufficient DNA. Researchers conducted radiocarbon dating and genetic analysis at the Denmark and USA laboratories. In addition, th...
Determine the pressure differential of the valve by subtracting the downstream pressure from the upstream pressure. Step 2 Take the square root of the pressure differential. Step 3 Multiply the square root of the pressure differential by the valve coefficient to calculate the flow in gallons per mi...
Determine whether each of the traits listed below are homologous or analogous traits. a). Limb bones of humans and cats b). Wings of birds and insects c). Streamlined body shape in What is typically used to organize homologous traits into groups that evolved from a single a...
Determine which taxon, class, or species contains the greatest diversity of organisms. Fill in the blank: In the mind of evolutionary theorists, separate clades (large groups) are derived from a single common at the point where clade lineages ...