Question

huntington disease is caused by *
a virus
a genetic disorder.
an extra chromosome
a bad environment.
the angle between the incident ray and the normal is called the angle of incidence *
true
false
a normal is a line that is perpendicular to the reflected surface. *
true
false
solar energy is a form of electromagnetic radiation. *
true
false

Explanation:

• Huntington disease is a genetic disorder caused by a mutation in the HTT gene.
• The angle of incidence is defined as the angle between the incident ray and the normal.
• A normal is a line perpendicular to the reflecting surface.
• Solar energy is a form of electromagnetic radiation as it consists of photons which are part of the electromagnetic spectrum.

Answer:

• Huntington disease is caused by: B. a genetic disorder.
• The angle between the incident ray and the normal is called the angle of incidence: A. True.
• A normal is a line that is perpendicular to the reflected surface: A. True.
• Solar energy is a form of electromagnetic radiation: A. True.