Fraternal Twins Share

question 115

Multiple Choice

 Fraternal twins share

• A) more genes than non-twin siblings but fewer genes than identical twins.
• B) about the same number of genes as non-twin siblings.
• C) about the same number of genes as identical twins.
• D) fewer genes than non-twin siblings.

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Definitions:

Variable

1. In symbolic logic, a symbol that stands for some, but any, unnamed individual thing; 2. In statistics, a trait regarded as a generic attribute that can exist in different degrees (values).

Closed Sentence

In predicate logic, a statement in which every variable is bound by a quantifier.

Variable

An element, feature, or factor that is liable to vary or change, often used in mathematics, statistics, and scientific experiments to represent quantities or qualities that can assume different values.

Open Sentence

A mathematical or logical statement containing one or more variables that does not have a definitive truth value until the variables are specified.