A Cardiac Pacemaker Would Most Likely Be Inserted in Cases

question 19

Multiple Choice

A cardiac pacemaker would most likely be inserted in cases of:

• A) angina pectoris.
• B) heart block.
• C) congestive heart failure.
• D) ventricular fibrillation.

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Definitions:

Fixing Beneficial Allele

The process by which a beneficial genetic variation becomes established, or fixed, in a population, often leading to evolutionary advantages.

Starting Frequency

Refers to the initial proportion or occurrence rate of a particular genetic variant or allele within a population at the beginning of a specified period.

Excess Fitness

The additional reproductive success of individuals with a certain genotype compared to the average reproductive success in the population.

Population Structure

The composition and spatial distribution of genetic variation within and between populations, influenced by factors like migration, mating patterns, and natural selection.