Genetics. The branch of biology that studies heredity. Gregor Mendel. The Father of Genetics An Austrian Monk during the mid nineteenth century Used garden pea plants to make his discovery that traits are passed from parent to offspring. Important Vocabulary.
The branch of biology that studies heredity
Heterozygous means a dominant allele and a recessive allele is present .
Examples: Tt, Yy, Pp
Homozygous means there is only one form of the allele present.
Examples: tt, TT, YY, yy, PP, pp
Offspring can be either homozygous dominant (TT) or homozygous recessive (tt).