ANTH 2-2 Flashcards
lemurs and lorises
Strepsirrhines
tarsiers
haplorhines
Old world monkeys
Asian and African monkeys
Catarrhines
New World Monkeys
American Monkeys
Platyrrhines
What is the ancestral condition for the number of premolars in primates?
3
Tooth Comb
Elongated lower dentition (canines and incisors)
Tympanic Tube
Bony tube involved in hearing
Bilophodonty
Cusps on each side of the molar that are connected by ridges
Post-Orbital Wall
Bones that fully protect the eye
______ primates have spines parallel to the ground, while ______ primates have spines more perpendicular to the ground.
Pronograde; Orthograde
In humans, the ability to smell hydrocyanic acid (HCN) is inherited as a recessive trait (h = can smell HCN, H = cannot small HCN). In this scenario, there are two parents and their two biological children are all standing in a room. One of the children can small the HCN, but the parents and the other child cannot.
What is the genotype of the child who can smell HCN?
hh
What is the genotype of each parent?
Father = Hh; Mother = Hh
Which genotype(s) could the child who cannot smell HCN have?
Hh, HH
Mutation
increase, increase
natural selection
decrease, increase/decrease
gene flow
increase, decrease
genetic drift
decrease, increase
Speciation
evolutionary process that bridges the scales of micro- and macro-evolution
Speciation is NOT an event. It is a PROCESS
