You Are Working with a Gene Associated with an Essential

question 34

Multiple Choice

You are working with a gene associated with an essential pathway that is necessary at two time points in an organism's lifetime. With regard to gene regulation, you would expect the gene to be

• A)"activated" by particular signals (induced).
• B)not constitutive.
• C)"turned off" by particular signals (repressed).
• D)associated with response to distinct events.
• E)all of the above

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Definitions:

Nervous System

The complex network of nerves and cells that transmits signals between different parts of the body, enabling organisms to respond to internal and external stimuli.

Cnidarians

A phylum of aquatic invertebrates known for their distinct body structure featuring a jelly-like substance and stinging cells, including jellyfish and corals.

Crystallin Genes

Genes that encode for crystallin proteins, which play a crucial role in the transparency and refractive properties of the eye lens.

Common Ancestry

A concept in evolutionary biology indicating that different species or individuals share a common ancestor at some point in their lineage.