Some Multifactorial Traits Are Determined by Many Interacting Genes, Each

question 4

Multiple Choice

Some multifactorial traits are determined by many interacting genes, each of which may have several alleles.If such a trait is measured in a population, what phenotypic pattern is expected?

• A)All individuals will have the same phenotype.
• B)Two types of individuals will exist, and most will have the dominant phenotype.
• C)Different individuals will each have one of a few discrete phenotypes.
• D)The population will have continuous variation in phenotypic expression.

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Definitions:

Depression

In geology, a landform sunk below its surroundings, forming a low area which can be natural or man-made.

Valley

A low area between hills or mountains, typically with a river running through it.

Ridge

A long, narrow elevation of land, often formed by the continuous movement of the Earth's crust.

Ridges

Elevated geological features, typically linear, that can form through tectonic activities such as at mid-ocean ridges or due to erosional processes.