Which of the following is caused by a dominant allele?

Autosomal dominant genetic disorders, such as Huntington's disease, are caused by dominant alleles of a single gene on an autosome. Changes in chromosome number can lead to disorders like Down syndrome. Chromosomal disorders also occur when part of a chromosome becomes damage.

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

your answer should be c) enjoy!