What Is the Primary Mechanism by Which Eukaryotes Control Transcription

question 21

Multiple Choice

What is the primary mechanism by which eukaryotes control transcription during cellular differentiation?

• A) regulatory transcription factors that influence chromatin structure and bind to regulatory regions
• B) production of microRNAs to disable mRNAs that should not be expressed
• C) post-translational control of proteins through ubiquitination and phosphorylation
• D) alternative splicing of genes in different tissue types
• E) inhibition of RNA polymerase through the expression of inhibitory enzymes

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Definitions:

Factoring

A financial transaction where a business sells its accounts receivable to a third party (factor) at a discount to get immediate cash.

Nontrade Receivables

Amounts owed to a business that are not related to the sale of goods or services, such as tax refunds, advances to employees, or insurance claims.

Company Officers

Executives appointed by the board of directors responsible for managing the day-to-day operations and making major corporate decisions.

Direct Write-Off Method

The method of accounting for uncollectible receivables that recognizes an expense only when an account is determined to be worthless.