Which of the Following Statements About Supercoiling of DNA Are

question 20

Multiple Choice

Which of the following statements about supercoiling of DNA are true?
(1) Supercoiled DNA differs in linking number from relaxed DNA.
(2) Supercoiled DNA can be relaxed through the action of topoisomerases.
(3) All DNA in the cell is positively supercoiled.
(4) A negatively supercoiled DNA is more difficult to unwind.

• A) Only 2, 3 and 4 are true
• B) Only 1, 2 and 3 are true
• C) Only 1 and 3 are true
• D) Only 1 and 2 are true
• E) All are true

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Definitions:

Supplies Account

An account used to track the cost of consumable items and minor equipment used within a business operation.

Adjustment

An alteration made to financial records or statements to correct errors or account for changes.

Trial Balance

A bookkeeping worksheet in which the balances of all ledgers are compiled into debit and credit columns to ensure that a company's financial transactions are correctly recorded.

Worksheet

A paper or digital document used to organize information, perform calculations, and prepare for the creation of financial statements.