How Does a Bacterial Cell Protect Its Own DNA from Restriction

question 8

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

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Definitions:

Retention Ratio

A financial metric indicating the percentage of a company's income retained and reinvested after dividends are paid to shareholders.

Debt-Equity Ratio

A ratio indicating the finance strategy of mixing shareholders' equity and debt for asset acquisition.

Profit Margin

A financial performance metric that indicates the percentage of revenue that remains as profit after accounting for costs and expenses.

Sustainable Rate Of Growth

The maximum rate at which a company can grow its sales and earnings without increasing its financial leverage or debt.