#of course cheese could be a polygene or Y-linked or something

[a-selkie-abroad]

NOT how genetics works. Well, it is, but it oversimplifies things.

Let's assume simple Mendelian inheritance with two alleles: C for cheese, c for no cheese, where the C allele is dominant as the post above states. Thus, CC will be a Cheeseburger Cc will be a Cheeseburger cc will be a Hamburger

The second Mendelian Law of Segregation states that a parent-burger can only pass down one of their alleles to their baby-burgers, and both alleles are equally likely to be passed on. This means the likeliness of a baby-burger being cheese or ham is dependant on the Cheeseburger parent's genotype. Let's do some punnet squares to explain.

A CC Cheeseburger parent (also called a homozygote) will look like this:

Now compare this to a Cc Cheeseburger parent (also called a heterozygote), which looks like this:

Therefore, a Cheeseburger/Hamburger cross will result in two scenarios: Scenario one, where all the baby-burgers are guarenteed to be cheeseburgers. Scenario two, where baby-burgers are equally likely to be either a cheeseburger or a hamburger. This technically makes cheeseburger children 'more likely' as they have the chance to show up in both potential crosses while hamburger only shows up in one. However. If you have a cross that's having both ham and cheese baby-burgers, as what the uneducated reader could assume from the post above, the ham-to-cheese ratio among the offspring will always be 50/50. Neither more likely than the other.

if a hamburger and a cheeseburger have a baby it most likely will have cheese on it because the cheese trait come from a dominant gene