Yes, just working with genetic material it can be determined whether or not two given reps can breed - but..yes ofc, this isn't the only bit of direct evidence we have available to us. They're reproductively incompatible, just as you are to them.
This is the functional description of speciation. A state of affairs in which two genetically related organisms are incapable of successful breeding with each other. The tomatoes, in this instance, are sufficiently genetically similar, though not identical, to produce offspring. When genetically dissimilar but reproductively compatible organisms mate, the process of evolutionary change which necessarily follows is called hybridization. Let's suppose that...for whatever reason, the hybrid offspring of our two dirt apple parents is wildly successful. Where would the next generation of dirt apples get their genetic material from?
This is the functional description of speciation. A state of affairs in which two genetically related organisms are incapable of successful breeding with each other. The tomatoes, in this instance, are sufficiently genetically similar, though not identical, to produce offspring. When genetically dissimilar but reproductively compatible organisms mate, the process of evolutionary change which necessarily follows is called hybridization. Let's suppose that...for whatever reason, the hybrid offspring of our two dirt apple parents is wildly successful. Where would the next generation of dirt apples get their genetic material from?
I am the Infantry. I am my country’s strength in war, her deterrent in peace. I am the heart of the fight… wherever, whenever. I carry America’s faith and honor against her enemies. I am the Queen of Battle. I am what my country expects me to be, the best trained Soldier in the world. In the race for victory, I am swift, determined, and courageous, armed with a fierce will to win. Never will I fail my country’s trust. Always I fight on…through the foe, to the objective, to triumph overall. If necessary, I will fight to my death. By my steadfast courage, I have won more than 200 years of freedom. I yield not to weakness, to hunger, to cowardice, to fatigue, to superior odds, For I am mentally tough, physically strong, and morally straight. I forsake not, my country, my mission, my comrades, my sacred duty. I am relentless. I am always there, now and forever. I AM THE INFANTRY! FOLLOW ME!