Question

A researcher is studying a rodent species with a lot of variability in tail length. Individuals may have short tails, medium tails, or long tails. The researcher has noticed that a new invasive predator, which catches prey by their tails as they try to escape, seems to catch individuals with long talls more often than those with short talls. Based on a small field trial, the relative fitness of long-tailed individuals seems to be 0.6 compared to short-tailed ones (1.0), with medium tails in-between (0.8) Use the Examples tab to predict the outcome after selection for the rodent in regions with the invasive predator. What describes the population after 100 generations of selection?
a. Short-tailed individuals are the most common phenotype.
b. Short-tailed individuals are the only phenotype.
c. This is an example of disruptive selection
d. The long-tailed phenotype is no longer present
e. This is an example of stabilizing selection.
f. This is an example of directional selection.

Answer 1

Answer:

a. Short tailed individuals are the most common phenotype.

Explanation:

Phenotype is individual who have interaction of genotype with the environment. Phenotype is physical expression of DNA. Short tailed phenotype are very dominant type offspring. Short tailed phenotype are dominant while long tailed phenotype are recessive.