Question

Tail length in a certain species of armadillo falls along a continuum; a plot of tail length versus frequency displays a normal distribution. Assuming that environmental factors do NOT play an important role in determining tail length, this type of variation probably reflects __________.

Answer 1

Answer: Polygenic Inheritance

Explanation: Polygenic Inheritance is the inheritance that controls the characteristic through two or more genes. This mechanism occurs in the organism but does not effect them severely .It is usually found in large amount.The example of changes that mostly occur are  skin color , weight , height etc.

The tail length of armadillo found in the continuum form is also an example of polygenic inheritance as the genes are playing the role in that organism for changing the tail length characteristics