Why Do Animal Viruses Have Envelopes and Phages Rarely Do

question 93

Multiple Choice

Why do animal viruses have envelopes and phages rarely do?

• A)Since bacteria don't have cell membranes,the bacterial viruses (phages)don't pick them up when they leave the target cells.
• B)Phages acquire an outer surrounding that is a part of the cell wall of the bacterium they were created in,rather than an outer surrounding of plasma membrane.
• C)Animal viruses will often utilize the envelope in order to fuse with the plasma membrane of a new target cell,gaining entry into the cytoplasm.
• D)Animal viruses build the envelope inside of the target cell as they are being replicated,but before the cell breaks open and releases them into the extracellular environment.The envelope is a remnant of this building process.

---

Definitions:

Majority

The greater part or number; often used to denote the age at which a person gains full legal rights and responsibilities.

White

A racial classification often used to refer to people of European origin, but can also denote purity or absence of color in different contexts.

Marriage Squeeze

A demographic imbalance in which the number of potential brides does not approximately equal the number of potential grooms within a certain population.

Middle Years

The period of life typically between early adulthood and old age, often considered to be from about age 45 to 65, characterized by stability and reflection on life achievements.