**Anatomically Modern Humans Flashcards
1
Q
What two main things signified symbolism with early modern humans?
A
- art
- ornaments
2
Q
Origins- Describe the recent out of Africa model
A
- all early modern humans evolved from Africa, and eventually replaced archaic humans. They overlapped briefly
- There is genetic evidence of distinct differences between archaic and moderns so it would make sense that we just replaced them instead of evolving from
3
Q
Origins- Describe the Assimilation model
A
- early modern humans came from Africa, and we interbreed with archaic species
- there is genetic difference from assimilation by a larger group
4
Q
Origins- Describe the multiregional Evolution model
A
-evolved in different regions and then gene flow occurred between the regions
5
Q
Where were AMH’s fossils found?
A
Africa, Asia, Europe, Australia
6
Q
What is the molecular clock?
A
measures mutations in gene frequencies over time to estimate time of divergence ( Last common ancestor ect)
7
Q
Four assumptions made in determining last common ancestor through mitochondrial dna?
A
- genetic variation in modern samples
- rate of mutation has been constant
- random mating has occurred
- mtdna selection has been random
8
Q
What is a haplotype?
A
- combination of mutations found together on a single chromosome
- can trace populations movements and demographics
9
Q
How did AMH’s migrate through to asia, new Zealand ect?
A
they must have had :
- knowledge of ocean and weather patterns
- seaworthy vessels
- followed bird patterns and stars
