Answer: In addition to having a 50% chance of inheriting autosomal dominant disorders from an affected parent, such a disorder is characterized by equal frequency of occurrence in both sexes (male and female).
Explanation: Autosomal dominant disorder has the following characteristics;
1. Appears in both sexes with equal frequency.
2. Does not skip generations.
3. Affected offsprings must have an affected parent unless they possess a new mutation.
4. Unaffected parents do not transmit the disorder.
5. When one parent is affected (heterozygous) and the other parent is unaffected, approximately 50% of the offsprings will be affected.
The process is when the magma cools and make crystals
Answer:
They increase the levels of catecholamines—a family of brain chemicals that includes dopamine.
Explanation:
Stimulants are a class of drugs that “stimulate” the body's central nervous system, which includes the brain and spinal cord. They increase the levels of catecholamines—a family of brain chemicals that includes dopamine. These chemicals are used in the brain processes to signal reward and motivation.
Answer:
Parabolic dunes
Explanation:
A parabolic dune is a U-shaped mound of sand. The tips point upwind because they are anchored by vegetation.
A is wrong. The tips of a barchan dune point downwind
C is wrong. A longitudinal dune is parallel to the prevailing wind.
D is wrong. The ridge of a transverse dune is perpendicular to the prevailing wind.
