Which One of the Following Contributes to the Utility of the Strains

question 9

Multiple Choice

Which one of the following contributes to the utility of the strains of Salmonella typhimurium used in the Ames reversion assay?

• A)They are highly permeable to test substances.
• B)They are defective in DNA repair and,therefore,cannot readily repair damage done by the test substances.
• C)It is very straightforward to assay the conversion of their histidine auxotrophy mutations to histidine prototrophy.
• D)all of the choices

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Definitions:

Predetermined Overhead Rate

An estimated overhead rate used to allocate manufacturing overhead costs to products, calculated prior to the accounting period.

Direct Labour Hours

The cumulative hours employees spend that are directly linked to the manufacturing of goods or the provision of services.

T Accounts

T accounts are a visual aid in accounting to represent general ledger accounts, showing debits on the left side and credits on the right, to track financial transactions.

Direct Labour Cost

The total expense incurred by a company for the wages of the workforce directly involved in manufacturing or producing goods.