Males and Females Express the Same Amount of X-Chromosome Genes

question 10

Multiple Choice

Males and females express the same amount of X-chromosome genes despite the fact that females have more X chromosomes.Animals approach this problem in different ways.Which of the following is an example?

• A)Female Caenorhabditis elegans express X-chromosome genes at 50%.
• B)Male fruit flies double the expression of their X-chromosome genes.
• C)Female humans inactivate one of their X chromosomes.
• D)all of the above
• E)none of the above

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Definitions:

Common Fixed Expenses

Expenses that remain constant in total amount and are not affected by changes in business activity level, shared across multiple business segments or products.

Business Segments

Parts of a company that can be separately identified by products provided or by geographic markets, allowing for analysis of the different areas of a business.

Variable Costing

An accounting approach that includes only variable production costs - direct materials, direct labor, and variable manufacturing overhead - in product costs, excluding fixed overhead.

Net Operating Income

The profit a company earns from its normal business operations, excluding non-operating income and expenses.