Which of the Following Statements About DNA Methylation Is TRUE

question 46

Multiple Choice

Which of the following statements about DNA methylation is TRUE?
(I) Methylation plays a role in genomic imprinting.
(II) Methylation can influence gene regulation.
(III) Methylation plays a role in restriction modification systems.
(IV) Methylation occurs in prokaryotic cells,but not eukaryotic cells.

• A)I,II,III,IV
• B)I,II,III
• C)II,III
• D)II,III,IV
• E)II only

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Definitions:

Z-test

A statistical test used to determine whether there is a significant difference between the mean of a sample and the mean of a population, or between the means of two samples, assuming a normal distribution.

T-test

A statistical test used to compare the means of two groups or samples to see if they are significantly different from each other.

Population Variances

A measure of the spread of a population's data points from its mean.

Test Statistic

A value derived from sample data, used in statistical hypothesis testing to determine whether to reject the null hypothesis.