Which of the following statements regarding human genetic disorders is accurate?
a. nondisjunction is responsible for causing huntington's disease.
b. disorders in individual genes can cause disease or provide individuals with a genetic advantage.
c. nondisjunction can lead to an incorrect number of sex chromosomes.
d. disorders in individual genes are responsible for down's syndrome

d. Disorders in individual genes are responsible for Down's syndrome

Which of the following statements regarding human genetic disorders is accurate?
NOT:
a. Nondisjunction is responsible for causing Huntington's disease.
b. Disorders in individual genes can cause disease or provide individuals with a genetic advantage.
c. Nondisjunction can lead to an incorrect number of sex chromosomes.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.