Dietary Factors Are Now Being Studied for How They Regulate

question 44

Multiple Choice

Dietary factors are now being studied for how they regulate gene activity and how this contributes to disease.For example,how does a diet high in unsaturated fatty acids help maintain a healthy blood lipid profile? Within hours of feeding animals with diets rich in polyunsaturated fatty acids (PUFAs) ,there is an increase in the activity of genes responsible for making enzymes that break down fats and a reduction of the activity of genes responsible for making enzymes that make fats.This has the effect of changing fat metabolism,which leads to a lowering of blood lipid levels.The control of what type of DNA sequence would PUFAs most likely be affecting?

• A)intron sequences
• B)exon sequences
• C)enhancer sequences
• D)micro-RNA sequences

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Definitions:

Short-term Obligations

Debts or liabilities that are due to be paid within a short period of time, typically within a year.

Operating Cash Flow

The cash generated from a company's normal business operations, indicating whether a company is able to maintain or grow its operations.

CCA Half-year Rule

A regulation in Canadian tax law allowing only half of the normal capital cost allowance deduction in the year of acquisition of a depreciable asset.

CRA

Canada Revenue Agency; responsible for administering tax laws for the Government of Canada and for most provinces and territories.