Which Statement Regarding Partial Chromosomal Deletions or Duplications Reflects the Cause

question 2

Multiple Choice

Which statement regarding partial chromosomal deletions or duplications reflects the cause of manifestations?

• A)They result in either a triple dose of some gene alleles or a single dose of some alleles.
• B)They usually result in fewer or milder manifestations than do trisomies or monosomies.
• C)The manifestations are unpredictable because they commonly vary depending on parental origin.
• D)General prenatal chromosomal analysis has resulted in fewer children being born with these problems.

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Definitions:

Critical Value

A point on the scale of the test statistic beyond which we reject the null hypothesis; it marks the boundary for deciding whether an observed test statistic is extreme.

Null Hypothesis

A statement used in statistical testing that assumes no significant difference or relationship exists between specified populations.

Standard Error

The standard deviation of the sampling distribution of a statistic, commonly used to measure the precision of the sample mean estimate.

Population Average

The mean of all observations or values in a population.