Alleles is the term which terms the factor mentioned by the Mendel.
B. alleles
Step-by-step explanation:
Alleles allude to various types of similar qualities. Greg-or Mendel known as the Father of Genetics played out a trial with various attributes of pea plant which actuates seed shape and shading, pod shape and shading, blossom shading, stem size and area of the bloom in the stem. He crossed qualities liable for the effort of these attributes.
He made a cross among, tall and diminutive person pea plants. The allele for the tall plant is "TT" while the allele for the diminutive person plant is "tt".When they are crossed the posterity will be Tt which expresses that all are tall. From this Mendel recommended that every character is the consequence of the collaboration of two alleles for that quality that is "TT" and "tt" are the alleles liable for the effort of an attribute called tallness.