Nominal Variables, Such as Gender and Ethnicity, Are Usually Entered

question 10

Multiple Choice

Nominal variables, such as gender and ethnicity, are usually entered into a data analysis program as

• A) letters corresponding to each level of the variable.
• B) a ratio scale.
• C) numbers corresponding to each level of the variable.
• D) words such as male, female, black, and white.

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Definitions:

Pseudogenes

Sequences of DNA that resemble genes but are non-functional due to mutations, deletions, or insertions.

Interstrain Recombination

Genetic recombination that occurs between different strains of microorganisms, leading to genetic variability.

Mitochondrial DNA

The DNA located in mitochondria, passed from mothers to their offspring, and used in studies of maternal lineage and evolution.