Biotechnology Engineering (M.Phil./Ph.D.) 2015 Panjab University Entrance Exam With Answers

Practice Mode:
5.

The denaturation temperature (I’m) of the double standard DNA is determined by measuring absorption of ultraviolet light at 260m. The Tm of the given DNA sample is _________ by the addition of formamide or urea.

A: Less affected
B: Not affected
C: Increased
D: Decreased

The answer is: D