A Relation Is a Named,________-Dimensional Table of Data

question 97

Multiple Choice

A relation is a named,________-dimensional table of data.Each relation (or table) consists of a set of named columns and an arbitrary number of unnamed rows.

• A)Two
• B)One
• C)Three
• D)Four

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Definitions:

Polygenic Processes

Involving or determined by several different genes, affecting the inheritance and variation of certain traits or disorders.

Heritability

A measure of how much of the variation in a trait within a population is due to genetic differences among individuals in that population.

Twin Studies

Studies of the heritability of a disorder by comparing concordance rates between monozygotic and dizygotic twins.

Identical Twins

Twins resulting from the splitting of a single fertilized egg, sharing the same genetic material and thus being genetically identical.