[coloradan]

Grafting doesn’t mix genes AFAIK. You have to pollinate flowers of one with pollen from the other.

[Lockbox]

Hey don’t you think it’s a little early in the morning to be talking about cross pollination.........

[Red Badger]

Correct.
In fact, you can grow multiple types of citrus fruit on one tree..............

[allmendream]

Cross pollination also doesn't “mix genes” (i.e. swap out genes along the chromosome to produce reproductive cells).

Plants are strange in that most successful crossbreeds do not have one half of the DNA of their mother and half of the DNA of their father, but ALL of the DNA of their mother and ALL of the DNA of their father. This allows them to avoid the infertility often associated with crossbreeds; for example a Tigon and/or a Lyger has problems producing viable reproductive cells because when it tries to ‘mix and match’ mom and dads genes along the chromosome, the differences between the Lion chromosome and the Tiger chromosome can often make a mess of things.

[allmendream]

Cross pollination also doesn't “mix genes” (i.e. swap out genes along the chromosome to produce reproductive cells).

Plants are strange in that most successful crossbreeds do not have one half of the DNA of their mother and half of the DNA of their father, but ALL of the DNA of their mother and ALL of the DNA of their father. This allows them to avoid the infertility often associated with crossbreeds; for example a Tigon and/or a Lyger has problems producing viable reproductive cells because when it tries to ‘mix and match’ mom and dads genes along the chromosome, the differences between the Lion chromosome and the Tiger chromosome can often make a mess of things.