In Contrast to Positive SsRNA Viruses Such as Coronaviruses and Polioviruses

question 55

Multiple Choice

In contrast to positive ssRNA viruses such as coronaviruses and polioviruses, the genome of retroviruses

• A) lacks genes encoding for tRNA primers.
• B) must first integrate into the hostʹs genome before transcription.
• C) is negative ssRNA.
• D) lacks ribonuclease activity.

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Definitions:

Preferred Shares

A class of ownership in a corporation that provides a higher claim on assets and earnings than common shares; dividends must be paid on these shares before any can be distributed to common shareholders.

Dividend Income

Earnings distributed to shareholders from the profits achieved by a company, often calculated per share and paid out in cash or additional shares.

Fair Value

An estimated market value of an asset, liability, or financial instrument, determined based on the current market conditions and not its historical cost.