Why is MtDNA ideal for human evolutionary research?
a) it never changes at all but remains exactly the same throughout every generation
b) because it is a combination of both the mother’s and the father’s DNA it is influenced
by both random mutation and natural selection
c) it is influenced by neither random mutation nor natural selection
d) because it is inherited only from the mother, it does not recombine and so variations
occur only through random mutation, forming a relatively reliable molecular clock
e) MtDNA is not ideal for evolutionary research; scholars prefer nuclear DNA
Most early Homo species, when compared to australopithecines, are characterized by:
a) larger brains and smaller jaws and teeth
b) smaller brains and larger jaws and teeth
c) knuckle-walking and increased olfactory abilities
d) dwelling in trees and having limited daytime vision
e) a lack of tool-use and reduced bipedalism
By combining archaeological information with information gleaned from what was