Ancestry estimation

Question 1

Humans are genetically ____

Answer 1

homogenous

Question 2

Two important people studying variation w/in populations

Answer 2

Lewontin (blood groups and proteins) and Relethford (DNA/classical gene markers)

Question 3

____% of variation w/in populations and ____% between local populations and large geo groups

Answer 3

85, 7.5

Question 4

Standard criterion for race in non-humans

Answer 4

Greater than/equal to 0.25

Question 5

Human criterion for race

Answer 5

0.156 or -0.075

Question 6

Cline

Answer 6

gradual change in a trait over geo. space, often related to environment

Question 7

Traditionally, what three broad race groups were used

Answer 7

European, Asian, African

Question 8

Estimating ancestry from cranium uses what method(s)

Answer 8

Anthroposcopic AND osteometric

Question 9

What age group can cranium ancestry estimation be used with?

Answer 9

Only adults, exception: teeth

Question 10

Shovel shaped incisors indicate what ancestry?

Answer 10

Over 90% Asian, less than 15% non-Asian

Question 11

What parts of the femur estimate ancestry?

Answer 11

Anterior curvature of diaphysis, torsion of neck, intercondylar shelf angle

Question 12

What is FORDISC?

Answer 12

Craniometric computer program, estimates sex, ancestry, and stature

Question 13

How many cranial and mandibular bones?

Answer 13

24, 10

Question 14

Main issue w/ other metric methods

Answer 14

Points of measurement can be ambiguous, difficult to replicate. Tendency to think numbers are more accurate than gross observation