You can conclude that the father was either heterozygous for that trait or fully homozygous.
I believe the term for two similar chromosomes would be homologous chromosomes.
An experiment to support the hypothesis, and then a conclusion that either supports or refutes the hypothetical statement
Reproductive isolation. Species refer to the group of organisms which share common morphological features and can interbreed and produce a viable offspring. Thus, the organisms of one species are reproductively isolated from the organisms of other species
