You Have Discovered a New Gene Similar to an Integrin

question 49

Multiple Choice

You have discovered a new gene similar to an integrin.If you misexpress this gene in the wrong tissue early in development,what is a likely phenotype?

• A)Migration into the wrong area
• B)Apoptosis
• C)Homeotic transformation
• D)Defects in anterior-posterior patterning

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Definitions:

Ras Proteins

A group of small G proteins, named by their discovery in rat sarcoma cancer cells; important in many signaling pathways.

Cyclic Adenosine

A cyclic form of adenosine monophosphate important in intracellular signaling processes.

Serotonin

A neurotransmitter of the biogenic amine group; important in mood and helps regulate the sleep–wake cycle.

Dopamine

A neurotransmitter of the biogenic amine group; important in motor function.