A Certain Disease Phenotype Is a Threshold Trait, Where Disease

question 25

Multiple Choice

A certain disease phenotype is a threshold trait, where disease occurs only if the number of susceptibility alleles in a genotype exceeds 3.How many phenotypic categories can be observed if the number of quantitative susceptibility loci has been determined as 5?

• A)2
• B)3
• C)5
• D)8
• E)11

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Definitions:

Same Latitude

Describes locations or points that share the same angular distance north or south of the Earth's equator, often measured in degrees.

Sunscreen

A lotion, spray, gel, or other topical product that absorbs or reflects some of the sun's ultraviolet (UV) radiation, helping protect against sunburn.

Argument By Analogy

A form of reasoning where a similarity between two different things is used to draw a conclusion or make a point about one of them.

Similarity

The state or fact of being similar; resemblance or likeness in qualities, characteristics, or appearance.