Polymerase Chain Reaction

[mariposa]

I have two different questions and i think i know the answers of them, if im wrong please correct me:

the function of pcr in genetic engineering?
1-cut DNA into many fragments
2-carry DNA into a new cell
3-link together newly joined fragments of DNA
4-make millions of copies of a specific segment of DNA
5-separate fragments of DNA by their lenght and electrical charges

and the other one is:

the main purpose of pcr is:
1-inhibit DNA synthesis
2-create new strands of DNA
3-denature specific strands of DNA
4-cleave DNA into two separate strands
5- crete copies of a DNA segment

So, i think in the first question the correct answer is d, and in the second one is e, i got confuse that in the same sheet they are asking on two different questions almost the same,
thank you,

[canalon]

You are right for both.
As for the weirdness of having the same question asked 2 times, I agree with you. But who knows what can go through your teachers head?

[mkwaje]

Maybe your teacher is trying to catch if you're simply guessing the correct answers. It will be proven if you got one question right and the other one wrong..