Mutations in the Pax6 Gene Cause Developmental Defects in the Eyes

question 72

Multiple Choice

Mutations in the Pax6 gene cause developmental defects in the eyes of flies, mice, and humans. This suggests that:

• A)the eyes of flies, mice, and humans evolved by convergent evolution.
• B)Pax6 may be a master regulator of eye development.
• C)Pax6 has been evolutionarily conserved.
• D)Pax6 may be a master regulator of eye development that has been evolutionarily conserved.
• E)Pax6 may be a master regulator of eye development that has evolved independently in the lineages leading to flies, mice, and humans.

---

Definitions:

Attention Deficit Disorder

is a neurological disorder characterized by inattention, impulsivity, and, in some cases, hyperactivity.

University Student

An individual enrolled in a higher education institution to pursue academic degrees or professional qualifications.

Electroconvulsive Therapy

A medical treatment involving the application of brief electrical pulses to the brain under anesthesia to treat severe psychiatric conditions, such as major depression.

Depressive Symptoms

Clinical manifestations associated with depression, including persistent sadness, loss of interest or pleasure, fatigue, and changes in sleep or appetite.