A ____ Occurs When You Have One Entity in Two

question 58

Multiple Choice

A ____ occurs when you have one entity in two 1:M relationships to other entities,thus producing an association among the other entities that is not expressed in the model.

• A) surrogate primary keys
• B) time-variant data
• C) design trap
• D) fan trap

---

Definitions:

QTL Association Studies

Research aimed at identifying quantitative trait loci (QTL) that are associated with specific phenotypic traits by examining the genetic linkage with markers.

Genetically Divergent Populations

Populations that show significant genetic differences from each other, often due to adaptations to different environments or evolutionary pressures.

Expected Frequency

A term often used in genetics and statistics referring to the predicted frequency of a particular genotype or allele in a population, based on theoretical assumptions.

Alleles

Variants of a gene found at the same place on a chromosome that code for different traits.