Final answer:
Transmission genetics is the sub-discipline of genetics that focuses on how an individual organism inherits and passes on its genes to the next generation.
Step-by-step explanation:
Transmission genetics is the sub-discipline of genetics that focuses on how an individual organism inherits and passes on its genes to the next generation. It involves studying the patterns of gene transmission from parents to offspring through the analysis of genetic crosses and inheritance patterns. For example, analyzing the inheritance of traits like eye color or blood type in humans. This sub-discipline is also known as Mendelian genetics, as it is based on the principles proposed by Gregor Mendel in the 19th century.