Blood Samples Are Taken from the Heel of Newborn Babies

question 28

Multiple Choice

Blood samples are taken from the heel of newborn babies to test for a mutation in the PKU gene, which, if left untreated and in severe cases, can lead to mental retardation, reduced skin pigmentation, and seizures. Which concept is being illustrated by this example?

• A) incomplete dominance
• B) polygenic inheritance
• C) pleiotropy
• D) codominance

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Definitions:

Confidence interval

An estimated range of values calculated from sample data that is likely to include the true population parameter with a specified level of confidence.

Average hourly income

The average amount of money earned by an individual or group per hour worked.

Confidence interval

A palette of statistical results, extracted from samples, aiming to encompass the unspecified value of a population attribute.

Value of t

A statistic used in hypothesis testing that compares the means of two groups to determine if they are significantly different from each other.