When two or more genes contribute to the phenotypic expression of ...

[genevieve1028]

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.

[vkodali]

Answer to Question 1

b

Answer to Question 2

d