Living Environment Translated English 2014 | Page 23











o Organisms inherit two copies of each gene , one from each
parent
o Organisms donate only one copy of each gene in their gametes
( sex cells). The two copies of each gene segregate ( separate)
during gamete formation ( meiosis)
Mendel’s second law is called the Law of Dominance.
o A dominant allele always shows up in the phenotype if it is
present .
o A recessive allele only shows up in the phenotype if there are
no dominant alleles present.
Mendel’s third law is the Law of %