Nancy and Cliff Had Four Children Who Did Not Have

question 70

Multiple Choice

 Nancy and Cliff had four children who did not have cystic fibrosis, but their fifth child was born with the disease. Cystic fibrosis is carried on a recessive gene. Given what you've learned in this chapter, how could this happen?

• A) It wasn't until the fifth child that both parents passed on the allele for this illness.
• B) Recessive genes normally skip a generation, but after the parents had five children, the gene was expressed.
• C) Their fifth child must have been a boy, which makes it more probable that he would have the illness.
• D) Their fifth child must have been a girl, which makes it more probable that she would have the illness.

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Definitions:

Residual Income

A measure of a company's profitability, calculated by subtracting the cost of capital from operating profits.

Minimum Required Rate

The lowest rate of return that an investment must yield to be considered acceptable.

Residual Income

Income that continues to be generated after the initial effort has been expended, or in managerial accounting, the operating income that an investment center earns above the minimum required return on its operating assets.

Minimum Required Rate

The lowest return on investment that an investor is willing to accept, considering the risk involved.