Question

The Serengeti region of Africa contains a population of cheetahs and a population of lions. Studies have shown that the cheetah population has very low genetic diversity, while the genetic diversity of the lion population is quite high. The cheetah population is also much smaller than the lion population. Both populations are vulnerable to infection with a particular virus that can be fatal in both species. What is the most likely outcome if both populations are infected with this virus?
A.
The cheetah population is more likely to survive because lower genetic diversity increases immunity to viruses.
B.
The lion population is more likely to survive because larger populations are immune to viruses.
C.
The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.
D.
The cheetah population is more likely to survive because there are fewer individuals for the virus to attack.

Answer 1

Answer: Option C. The lion population is more likely to survive because it is more likely to have individuals with traits to combat the virus.

Explanation:

• Genetic diversity refers to the total number of genetic characteristics that exists among the genetic makeup of a given population and is necessary for individuals of a population to adapt to different environmental conditions.
• Populations with greater genetic diversity are more resistant to diseases as compared to those with lower diversity because the different genetic makeups make it difficult for the pathogens to adapt to its host.

• Thus, the probability of survival and combating the viral disease is more in the lions due to greater genetic diversity.