The physical expression of genes are phenotype. Phenotype is the expression of the gene by the appearnace of the organism. It is the characteristics of that trait.
Examples : When pigment is made in our eyes, height ( tall and short) , weight, blond hair is the phenotype for the blond hair genotype and skin colour( black, white ) is the phenotype trait.
Answer;
-The secondary and tertiary structure of the enzyme.
Explanation;
-Lactase is an enzyme that is found in the small intestine, liver, and kidney of mammals. In the presence of lactase, lactose is cleaved and reduced to its subunits D-galactose and D-glucose, monosaccharides that can eventually be utilized as a source of energy in cells.
-At extremely low pH, molecules move so slowly that reaction rates can be hampered even though the enzyme is still properly folded and active. At extremely high pH, bonds and interactions that exist between the amino acid side chains (R groups) in an enzyme become disrupted. The result is that the enzyme is incapable of maintaining its shape, and therefore unfolds, becoming inactive.
Explanation:
Platelets are tiny blood cells that help your body form clots to stop bleeding. If one of your blood vessels gets damaged, it sends out signals to the platelets. The platelets then rush to the site of damage and form a plug (clot) to fix the damage.
Answer:
mutation
Explanation:
I'm not sure, but it can be.