What Is Key to Recognition of a Trait Whose Expression

question 8

Multiple Choice

What is key to recognition of a trait whose expression is determined by the effects of two or more genes (polygenic inheritance) ?

• A)A mating between a homozygous and a heterozygous individual produces more than the expected number of offspring expressing the dominant trait.
• B)All of the alleles of the gene for that trait are equally expressed.
• C)Pleiotropy occurs.
• D)The trait varies along a continuum in the population.

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Definitions:

Insomnia

A sleep disorder characterized by difficulty falling asleep, staying asleep, or obtaining restorative sleep, leading to daytime dysfunction.

Hypertension

A health issue distinguished by continuously elevated levels of blood pressure.

Overweight

A state where an individual carries excess body fat that is not considered healthy, typically identified by a Body Mass Index (BMI) ranging from 25 to 29.9.

Pulse Rate

The number of heartbeats per minute, indicating heart rate and cardiovascular health.