What is a probable reason that a trait skips a generation? A) the trait is recessive
B) the trait is dominant
C) the trait has been amplified
D) the trait is extinct

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?