How Does a Bacterial Cell Protect Its Own DNA from Restriction

question 60

Multiple Choice

How does a bacterial cell protect its own DNA from restriction enzymes?

• A) by adding methyl groups to adenines and cytosines
• B) by using DNA ligase to seal the bacterial DNA into a closed circle
• C) by adding histones to protect the double-stranded DNA
• D) by forming "sticky ends" of bacterial DNA to prevent the enzyme from attaching
• E) by reinforcing the bacterial DNA structure with covalent phosphodiester bonds

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Definitions:

ASPE

The Accounting Standards for Private Enterprises (ASPE) is a set of accounting standards for private companies in Canada, providing guidelines on financial reporting practices.

Accrual Basis

An accounting method where revenues are recorded when earned, and expenses are recorded when incurred, regardless of when cash is exchanged.

Net Income

The net income of a business once all costs and taxes are subtracted from its total earnings.

Cash Basis

The cash basis is an accounting method where revenues and expenses are recognized only when cash is received or paid, as opposed to when they are incurred.