Apaleontologist is trying to be study the dna of a fossil from an extinct animal called x. he has formulated three hypotheses. which hypothesis cannot be tested?

It seems that you have missed the necessary options for us to answer this question, so I had to look for it. Anyway, here is the answer. A  paleontologist is trying to be study the DNA of a fossil from an extinct animal called x. He has formulated three hypotheses, and the hypothesis that cannot be tested is this: X's DNA consists of a single strand. Hope this helps.

You e got the answer to the question right