In humans, the ability to break down lactose as an adult (known as lactase persistence) is dominant (L) to the inability to break down lactose as an adult (known as lactose intolerance), which is recessive (I).
Which of the following genotype and phenotype combinations is correctly labeled?

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.