Mendel's understanding of the inheritance of traits in peas, expressed in modern language, included:
a. not all genes are identical; individuals often carry alternative forms (alleles) of the same gene.
b. if an individual carries a given allele, it will show the corresponding phenotype
c. each of the alleles present in an individual is discrete.
d. each individual contains two identical alleles for each trait.
e. parents transmit information encoded in genes.