When a Solution Composed of Bacteria and Infectious Virions Are

question 30

Multiple Choice

When a solution composed of bacteria and infectious virions are mixed and spread on an agar plate, ________ form where viruses lyse the host cells.

• A) insertion sequences
• B) plaques
• C) prophages
• D) colonies

---

Definitions:

Periodic Inventory System

A system where inventory levels and cost of goods sold are determined at the end of the accounting period, rather than continuously.

Double Entry Accounting

An accounting system that maintains the balance of the accounting equation (Assets = Liabilities + Equity) by recording each transaction twice, once as a debit and once as a credit.

Single Entry Accounting

A method of bookkeeping that records only one side of each financial transaction, typically sufficient for smaller, simpler businesses.

Gross Profit

The difference between sales revenue and the cost of goods sold before accounting for other expenses.