Some Complex Viruses Have Icosahedral Symmetry in the Head Region

question 63

Multiple Choice

Some complex viruses have icosahedral symmetry in the head region and helical symmetry in the tail.Overall,these viruses are said to have __________ symmetry.

• A)bilateral
• B)binal
• C)complex
• D)none of these

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Definitions:

Superego

In Freudian psychoanalysis, the part of the personality that acts as a moral center, guiding behavior by internalizing societal and parental standards of right and wrong.

Preconscious Mind

Part of the mind that contains information not currently in consciousness but can be easily accessed and brought into awareness.

Id

In psychoanalytic theory, the part of the psyche that is the source of instinctual impulses and demands for immediate satisfaction of basic needs.

Ego

In psychoanalytic theory, the part of the personality structure that mediates between the demands of the id, superego, and reality, functioning as the executive control.