Which of the Following Is a Good Example of Two

question 19

Multiple Choice

Which of the following is a good example of two genes that are orthologous?

• A) the promoter and the repressor genes of the lac operon in E. coli
• B) the genes for the first two enzymes in the glycolytic pathway
• C) the gene for the photosynthetic enzyme RuBisCO in a fern and in an oak
• D) the human gene for the cell surface protein Siglec-12, and the human pseudogene Siglec-13
• E) None of these pairs are orthologous.

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Definitions:

Return on Equity

A measure of a company's profitability by revealing how much profit a company generates with the money shareholders have invested.

Return on Assets

A profitability ratio that indicates how efficiently a company is using its assets to generate earnings.

Return on Sales

A financial ratio that calculates how efficiently a company is generating profits from its revenue, typically expressed as a percentage of sales revenue that turns into net income.

Ending Cash Balance

The amount of cash on hand at the end of a financial period.