A Man Who Is a Carrier for Cystic Fibrosis and for the TGFB1

question 121

Essay

A man who is a carrier for cystic fibrosis and for the TGFB1 modifier gene has a child with a woman who is also a carrier for cystic fibrosis but has two copies of the recessive allele for the TGFB1 modifier.What percentage of their children will have cystic fibrosis AND express the recessive modifier? Show your Punnett square.

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Definitions:

Standard Normal Distribution

A bell-shaped distribution that is symmetric about a mean of zero and with a standard deviation equal to one, used in many statistical analyses.

Normal Distributions

Symmetrical bell-shaped distributions that describe how data points are dispersed or spread out across the mean.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values differ from the mean.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, showing how much each value differs from the mean.