Why Can the Same Short Tandem Repeat Region Vary in Length

question 258

Multiple Choice

Why can the same short tandem repeat region vary in length between the two copies of a chromosome of an individual?

• A) Each chromosome is inherited from a different parent.
• B) Variation prevents the propagation of copy errors.
• C) DNA replication is an imperfect process.
• D) STR regions are modified during transcription.
• E) Differences signal polymerase to bind to the correct strand.

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Definitions:

Correlation Coefficient

A measure indicating the degree to which two variables are linearly related, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation).

Adjusted Coefficient

Refers to a statistical measure adjusted for the number of predictors in a model to better assess the goodness of fit.

Independent Variables

Variables that are manipulated or selected by the researcher to determine their effects on dependent variables.

Sum of Squares

Sum of squares is a statistical technique that measures the dispersion or variation within a data set, by summing the squares of deviations from the mean.