Teaching CSIR NET Mock Test Series Life Sciences Evolution and Behavior Brain, Behavior and Evolution
Runaway selection was proposed by R. A. Fisher to explain the evolution of extravagant secondary sexual characters. The model is based on the exaggeration of characters in male, and female choice for these exaggerated characters. Which one of the following statements is considered an assumption of this model?
1
Exaggeration of characters in males, and female choosiness for exaggeration are both heritable.
2
Neither exaggeration of characters in males, nor female choosiness for exaggeration are heritable.
3
Exaggeration of characters in males is heritable but female choosiness for exaggeration is not heritable.
4
Exaggeration of characters in males is not heritable but female choosiness for exaggeration is heritable.