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.
Single bull elk are vulnerable to predation by wolves.
Some obesity genes in the human genome. The green triangles represent single genes in which obesity
Mutations in posterior Hox genes (HOXD13 in this case) in humans
Illustration of the concept of overlapping genes
Maternal inheritance of mitochondrial genes in mammals
The Hardy–Weinberg equilibrium for autosomal genes