While Mutation of Genes for the Biosynthesis of Sphingolipids Are

question 33

True/False

While mutation of genes for the biosynthesis of sphingolipids are probably lethal,mutations in genes for the degradation of sphingolipids often lead to metabolic diseases such as Tay-Sachs disease.

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Definitions:

Marginal Tax Rate

The rate at which the next dollar of taxable income is taxed, indicating the impact of each additional dollar of income on taxes owed.

Additional Income

Extra earnings obtained beyond the regular sources of income or revenue.

Proportional Tax

A tax whose burden is the same proportion of income for all households.

Regressive Tax

A tax whose burden, expressed as a percentage of income, falls as income increases.