What Does It Mean to Say That a Signal Is

question 27

Multiple Choice

What does it mean to say that a signal is transduced?

• A) The physical form of the signal changes from one form to another.
• B) The signal triggers a sequence of phosphorylation events inside the cell.
• C) The signal is amplified, such that even a single molecule evokes a large response.
• D) The signal enters the cell directly and binds to a receptor inside.
• E) The signal molecule passes through the cell membrane.

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Definitions:

Sperm Cell

The male reproductive cell, which can fertilize an egg cell to initiate the development of a new organism.

Genetic Material

Molecules within living cells that carry genetic information, primarily DNA or RNA, which guide the development, functioning, and reproduction of organisms.

Monozygotic (MZ) Twins

Twins that derive from a single zygote that has split into two; identical twins. Each MZ twin carries the same genetic code.

Dizygotic (DZ) Twins

Twins that derive from two zygotes; fraternal twins.