A Type of Muscular Dystrophy Shows Sex-Linked Recessive Inheritance

question 69

Multiple Choice

A type of muscular dystrophy shows sex-linked recessive inheritance. Affected persons usually die by the age of 20. Suppose that a boy with the disease lives long enough to marry a woman heterozygous for the trait. If they have a son, what is the probability that he will have the disease?

• A) 25%
• B) 50%
• C) 0%
• D) 100%
• E) 75%

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Definitions:

Rent

Payment made by a tenant to a landlord for the use of a property.

Depreciation

The allocation of the cost of an asset over its useful life.

EBIT

Earnings Before Interest and Taxes, a measure of a company's profitability that excludes interest and income tax expenses.

Degree of Financial Leverage

A measure of a company's use of borrowed funds to finance its operations, indicating the sensitivity of its earnings to fluctuations in operational income.