List of top Questions asked in KEAM- 2013

Which of the following compounds are optically active? (i) 3-hydroxypentane$\quad$$\quad$ (ii) 2-aminopropanoic acid (iii) 2-chlorobutane $\quad$$\quad$(iv) 2-methylbutane Choose your answer from the codes given below

Which of the following activates JG cells to release renin?

The group 13 element that is liquid during summer and used for measuring high temperature is

Select the correct sequence of steps in DNA fingerprinting involving southern blot hybridization using radiolabelled VNTR as a probe. I. $\quad$Hybridization using labelled VNTR probe. II. $\quad$Isolation of DNA. III. $\quad$Transferring (blotting) of separated DNA fragments to synthetic $\quad$$\quad$membranes, such as nitrocellulose or nylon. IV.$\quad$ Detection of hybridized DNA fragments by autoradiography. V. $\quad$Separation of DNA fragments by electrophoresis. VI. $\quad$Digestion of DNA by restriction endonucleases.

Pick out the wrong statement

The heart is pumping blood at x kg per unit time, with a constant velocity v. The force required is