Tissue Containing Totipotent Embryonic Stem Cells Is Difficult to Obtain;

question 86

Multiple Choice

Tissue containing totipotent embryonic stem cells is difficult to obtain; what is the usual source?

• A) donated blastocysts produced by in vitro fertilization for women seeking fertility treatment
• B) tissues from spontaneous miscarriage during the first trimester of pregnancy
• C) blood and tissues extracted from the placenta after the birth of the fetus
• D) cloned embryos produced by fusing a somatic cell with an enucleated egg cell

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Definitions:

Random Variable

A variable whose possible values are numerical outcomes of a random phenomenon.

Standard Deviation

An indicator that quantifies the extent to which values in a collection differ from the average, showcasing the degree of spread or divergence among the data points.

Mean

The arithmetic average of a set of values, found by adding them together and dividing by the number of terms.

Normal Distribution

Data points nearest to the mean occur more frequently in this symmetric probability distribution, with diminishing occurrences of data points as they deviate from the mean.