When two or more genes contribute to the phenotypic expression of a single characteristic, it is known as:
a. punctuated equilibrium
b. polygenetic inheritance
c. clinal expression
d. genetic drift
Question 2
This primate was a diurnal quadruped with a mixture of money and ape features: its lower molars had five cusps like an ape its skull had forward-facing eye sockets protected by a bony wall an endocast of the cranium reveals that it had a visual cortex larger than that found in Prosimians, but the brain was smaller than that of more recent anthropoids and it had marked sexual dimorphism and was no bigger than a modern house cat. It is a:
a. Dryopithecus.
b. Ardipithecus.
c. Homo habilis.
d. Aegyptopithecus.
e. Australopithecus afarensis.
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