QUESTION: Fix punctuation: There are cases when bipolar sensing is necessary for a temporary period other cases when it may be preferable
ANS: There are cases when bipolar sensing is necessary for a temporary period, other cases when it may be preferable.
QUES: For the application of qPCR the examination of melt curves can be useful to determine whether different species such as primer dimers may be contributing to a signal Further performing a control experiment whereby primers are dispensed in the absence of template DNA may help identify primers with a propensity to dimerize

correct the punctuation.

CORRECTED: For the application of qPCR, the examination of melt curves can be useful to determine whether different species, such as primer dimers, may be contributing to a signal. Further, performing a control experiment whereby primers are dispensed in the absence of template DNA may help identify primers with a propensity to dimerize.
Question: 25 And when they had spoken the word in Perga they went down to Attalia
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Answer: 25 And when they had spoken the word in Perga, they went down to Attalia;
It does immediately and smoothly the gear change

Can you repeat this sentence, but add in punctuation?
It does immediately and smoothly the gear change.
input: Description Beutiful female in tree
fixed: Description: Beutiful female in tree
You cannot use grapes that have not been grown in Champagne Which is why the grape prices now move close to or even pass five euros per kilo

Can you repeat this sentence, but add in punctuation?
You cannot use grapes that have not been grown in Champagne. Which is why the grape prices now move close to or even pass five euros per kilo.