Kaplan Nursing Entrance Exam Practice 2025 – Comprehensive Prep

Question: 1 / 2700

In terms of genetics, who displays the trait of susceptibility to smallpox?

Only heterozygous individuals

Only homozygous dominant individuals

Homozoygous recessive individuals

The trait of susceptibility to smallpox is associated with homozygous recessive individuals. This means that individuals who have two copies of the recessive allele are more likely to exhibit vulnerability to smallpox, as they lack certain genetic defenses that could offer protection against the virus.

In genetics, dominant traits mask the expression of recessive traits. Therefore, individuals who are homozygous dominant or heterozygous possess at least one dominant allele, which likely provides some level of protection against the disease. Consequently, it is the homozygous recessive individuals who do not inherit the protective genetic traits and thus display susceptibility to smallpox.

Understanding the genetic framework of dominant and recessive traits allows one to comprehend how certain individuals are more susceptible to diseases based on their genetic composition.

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Both homozygous recessive and heterozygous individuals

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