A trait that hides or masks another trait is...

a) DNA replication
b) incomplete dominance
c) a recessive trait
d) a dominant trait

a dominant trait

Explanation:

The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.

C and B

Explanation:

Genes for different traits are inherited independently of one another (law of independent ... Multiple alleles, incomplete dominance, and codominance (article) ... Recessive alleles of two different genes may give the same phenotype. ... The concept of complementary genes simply states that if certain alleles.

protein synthesis is an example of feedback mechanism which in homeostasis

answer; ///(b) it is composed of four protein chains and four heme groups;