DNA, Cows, and Cheese

Factual Questions
1

Could the DNA in cheese be used to trace it back to the cows that originally produced the milk?

2

I’m not sure, BZ, but I do wonder if cheeses that are made with rennet (a coagulant from calves’ stomachs) contain trace amounts of DNA from the calf.

3

How just testing milk, too?

4

Rennet may be obtained from any ruminant, not solely cows.

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