When Monozygotic (MZ)twins Who Were Discordant for Schizophrenia Were Compared

question 125

Multiple Choice

When monozygotic (MZ) twins who were discordant for schizophrenia were compared with MZ twins who both had schizophrenia, researchers found that the MZ twins discordant for schizophrenia:

• A)possessed additional genetic material not found in members of the control group.
• B)had the exact same DNA structure, thereby implicating environmental factors.
• C)showed numerous differences in the molecular structure of their DNA.
• D)had few, but noticeable, variations in their genetic makeup.

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Definitions:

Average Amount

The sum of a collection of numbers divided by the count of numbers in the collection.

Sleep

A naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, and inhibition of nearly all voluntary muscles.

Test Of Significance

Statistical tests used to determine the likelihood that a relationship observed in data occurred by chance.

Categorical Data

Categorical data refers to variables that represent categories or groups, such as gender or eye color, which can be used in statistical analysis to compare different groups.