What is a commercial use for latic acid fermentation

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.