Final answer:
Transmission genetics focuses on how genes are passed on from parents to offspring.
Step-by-step explanation:
The field of genetics that focuses on how genes are passed on from parents to offspring is Transmission Genetics.
Transmission genetics involves studying the patterns of inheritance of genes and how they are transmitted through generations. It examines concepts such as Mendelian inheritance, Punnett squares, and pedigree analysis to understand the transmission of traits from parents to offspring.