Researchers have recently sequenced the genetic identities of nine ancient fully modern H. sapiens from sites in Italy, France, the Czech Republic, and Russia. What did this research focus on?
a. the Y chromosome
b. mtDNA
c. the ABO blood groups
d. the Y chromosome and the ABO blood groups
e. only cranial remains
Question 2
Which of the following has not been proposed as a model to explain the origin of modern Homo sapiens?
a. An origin in Africa followed by migration to other areas where indigenous premodernpopulation s were replaced.
b. An origin in Africa followed by migration to other areas where both interbreeding andreplacement occurred.
c. Several origins in different areas where modern forms evolved from local populations.
d. Separate origins in Africa and Australia with migrations from both these areas to displace allother populations.
e. A strong influence of modern humans evolving first in Africa that left an imprint on populations throughout the world that is detectable today.
Ancient Warming Shrunk Horses to Housecat Size
Genetic variation in the metabolism of alcohol.
The Genetic Code
Recently discovered members of the deep pelagic community
A genetic bottleneck
Independent assortment versus genetic linkage