A Chronic, Progressive Condition Characterized by Shortness of Breath and Destruction

question 40

Multiple Choice

A chronic, progressive condition characterized by shortness of breath and destruction of alveolar surfaces and inadequate surface area for gaseous exchange is termed

• A) cystic fibrosis.
• B) emphysema.
• C) asthma.
• D) pneumonia.
• E) none of the above

---

Definitions:

Genotype

The genetic makeup of an organism, consisting of all the DNA sequences that code for its physical and physiological traits.

Phenotype

The observable physical or biochemical characteristics of an organism as determined by both genetic makeup and environmental influences.

Microevolution

The process of evolution over a short period that results in changes in gene frequency within a population, leading to slight adaptations or shifts.

Allele Frequencies

The proportion of all copies of a given gene variant (allele) present in a particular population.