Calico Cats Are Female Because

question 66

Multiple Choice

Calico cats are female because

• A)a male inherits only one of the two X-linked genes controlling hair color.
• B)the males die during embryonic development.
• C)the Y chromosome has a gene blocking orange coloration.
• D)only females can have Barr bodies.
• E)multiple crossovers on the Y chromosome prevent orange pigment production.

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Definitions:

Contribution Margin

The amount that one unit contributes to profit. It is defined as price minus marginal cost.

Fixed Costs

Expenses that do not change with the level of goods or services produced by a business, such as rent, salaries, or insurance premiums.

Break-Even Quantity

The amount you need to sell to at least break even (make zero profit). The formula (assuming that you can sell all you want at price and with constant marginal cost) is Q = F/(P - MC), where F is fixed costs, P is price, and MC is marginal cost.

Zero Profits

Zero profits, or normal profit, occur when a company's total revenues exactly match total costs, leaving no net profit or loss.