MCQ_SINGLE

During PCR, primers bind to the DNA strands in the ______ step.

MCQ_SINGLE

Sponges exchange $O_{2}$ with $CO_{2}$ by

MCQ_SINGLE

The complex which has facial and meridional isomers is (Given: py = pyridine and en = $H_{2}N-CH_{2}-CH_{2}-NH_{2}$)

MCQ_SINGLE

Match List-I with List-II. List-I: A. Cristae B. Cisternae C. Thylakoids D. Phospholipid List-II: I. Flat membrane sacs in stroma of chloroplast II. Infoldings in mitochondria III. Cell membrane IV. Disc shaped sacs in the Golgi apparatus Choose the correct answer from the options given below:

MCQ_SINGLE

In the measurement of viscosity of liquids using terminal velocity experiment, spherical balls of same radius but having different densities are used. The variation of the terminal velocity (v) with the ratio of density of spherical ball ($\sigma$) to density of the liquid ($\rho$), is best represented by:

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