A Horse Has a Diploid Number (2n)of 64 and a Donkey

question 30

Multiple Choice

A horse has a diploid number (2n) of 64 and a donkey has 2n = 62. The hybrid of these two species, mules, have 2n = 63 and are sterile. Why are mules sterile?

• A)Mules cannot physically mate with each other.
• B)Mules cannot physically mate with horses and donkeys.
• C)One chromosome is unpaired and fails to divide properly during meiosis.
• D)Mules are not true hybrids.
• E)Horses are not able to form new species.

---

Definitions:

Populations

Groups of individuals of the same species living and interacting within a specific area.

Nutrient Cycle

The movement and exchange of organic and inorganic matter back into the production of living matter, a key process in ecosystems that recycles nutrients.

Analytical Economist

An economist who utilizes mathematical models and statistical analysis to understand and predict economic behavior and trends.

Ecological Problem

An environmental issue that arises from the interaction of human activities with the natural environment, often leading to negative impacts on ecosystems and biodiversity.