MZ (Monozygotic)twins Are Genetically Identical; DZ (Dizygotic)twins Share About 50

question 11

Essay

MZ (monozygotic)twins are genetically identical; DZ (dizygotic)twins share about 50% of their genes with each other.A study of 2,685 twin pairs showed that female MZ twins are six times more likely than DZ twins to have a high concordance for alcoholism.All of the twin pairs were raised together.What does this finding suggest about genetic and environmental components for alcoholism? Explain your answer.

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Definitions:

Relative Cell Reference

In spreadsheet programs, a cell address expression that changes when it is copied to another location, relative to the position of the target cell.

Exact Cell Address

The specific location of a cell in a spreadsheet, identified by the combination of its column letter and row number.

Absolute Cell Reference

In spreadsheet applications, an absolute cell reference is a cell address that does not change when copied or moved to another cell location.

AutoFill Options Button

An interface button that, when activated, provides options to automatically complete filling data in fields based on patterns, preferences, or previously entered information.