When a Chemical Signal from a Group of Embryonic Cells

question 58

Multiple Choice

When a chemical signal from a group of embryonic cells causes a different, nearby group of cells to embark on a particular developmental course (say, differentiating into a leg) , the interaction between the two groups of cells is called

• A)induction.
• B)coordinated differentiation.
• C)implantation.
• D)potentiation.

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Definitions:

Random Variation

Unpredictable fluctuations that are inherent in processes or measurement methods and cannot be controlled.

Unpredictable Event

An event that cannot be anticipated or accurately predicted based on past or current information.

Moving Average

A statistical method to analyze data points by creating a series of averages of different subsets of the full data set, often used in time series analysis.

Forecasted Value

is a predicted value based on historical data and analysis, often used in statistics and economics.