Compared to Neandertal skulls, anatomically modern specimens found at the Skhl and Qafzeh sites in Israel have a modern shape. Their brain cases are
A. higher, shorter, and rounder, with a more filled-out forehead region and a marked chin.
B. larger and longer, with marked brows.
C. thicker, the result of an adaptation to increased interspecies violence.
D. rounder and heavier, with a less marked chin.
E. the largest of all hominins, even beyond modern dimensions.
Question 2
In 1997, ancient DNA was extracted from one of the Neandertal bones originally found in Germany's Neandertal Valley in 1856. This was the first time the DNA of a premodern human had been recovered. When comparing this DNA with that of modern humans, the researchers found
A. 27 differences between the two, many more than would be expected in closely-related humans, suggesting that their common ancestor probably lived 600,000 years ago.
B. only 5 to 8 differences between the two, as is typical of closely-related humans, placing Neandertals within modern humans' direct line of descent.
C. many more mutations in the Neandertal DNA, suggesting the species had been around 100,000 years longer than previously estimated.
D. no differences, demonstrating that Neandertals and modern humans are the same species.
E. that the two samples were not comparable, since the Neandertal DNA was molecularly different from the DNA of the reference sample.
The 20 amino acids found in living organisms
The formation of a chimeric gene that is found in people with certain forms of leukemia.
Features found in a long bone.
) Ornithine and citrulline, which are not found in proteins
An Extinct Vertebrate and a Modern Relative
This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ...