Which of the Following Descriptions Correctly Identifies the Main Structural

question 53

Multiple Choice

Which of the following descriptions correctly identifies the main structural differences between viruses with envelopes and viruses without envelopes?

• A) Viruses with envelopes have their genetic material enclosed by a layer made only of protein.
• B) Viruses without envelopes have only a phospholipid membrane, while viruses with envelopes have two membranes, the other one being a protein capsid.
• C) Viruses with envelopes have a phospholipid membrane outside their capsid, whereas viruses without envelopes do not have a phospholipid membrane.
• D) Both types of viruses have a capsid and phospholipid membrane; but in the viruses without envelopes, the genetic material is between these two membranes, while in the viruses with envelopes the genetic material is inside both membranes.

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Definitions:

Industry Entry and Exit

The process by which new competitors enter and existing firms exit a market or industry, often influenced by barriers to entry, market competition, and profitability.

Long-Run Profits

Long-run profits are the earnings a firm expects to achieve over a period during which all inputs, including capital, can be fully adjusted.

Elastic

Describes a situation where the demand or supply for a good or service significantly changes in response to changes in price.

Pure Competition

A market structure characterized by a large number of buyers and sellers, uniform products, and free entry and exit, leading to price taking behaviour.