Maternal PKU Can Result in Serious Effects in Fetuses

question 29

Multiple Choice

Maternal PKU can result in serious effects in fetuses. This problem occurs because:

• A) the fetus is homozygous for PKU and therefore cannot metabolize phenylalanine.
• B) the fetus is usually homozygous dominant and therefore has PKU.
• C) the mother is heterozygous for PKU and therefore cannot metabolize phenylalanine.
• D) the mother is homozygous dominant for PKU and cannot metabolize phenylalanine.
• E) the mother is homozygous recessive for PKU and cannot metabolize phenylalanine.

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Definitions:

Regression Model

A statistical model that estimates the relationship between a dependent variable and one or more independent variables.

Individual Coefficient

A specific value that quantifies some type of relationship in mathematical or statistical models.

Standard Error

The standard deviation of the sample distribution of a statistic, often used to estimate the precision of sample means.

F-statistic

A ratio of variances that is used to test the overall significance of a multiple regression model; it compares model fit versus random variance.