Practice Questions

TLS Online TPP Program

#Question id: 2110

According to the fluid mosaic model of cell membranes, phospholipids:

#Section 3: Genetics, Cellular and Molecular Biology

can move laterally along the plane of the membrane
frequently flip-flop from one side of the membrane to the other
occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the membrane
have hydrophilic tails in the interior of the membrane

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TLS Online TPP Program

#Question id: 12911

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the following:

A. DNA polymerases i. Alkaline phosphatase a.RNA-dependent DNA polymerase, used in cDNA synthesis

B. Reverse transcriptase ii. T4 DNA ligase b. Thermostable DNA polymerase used in PCR

C. Ligases iii. AMV-RT c. Removes 5′-phosphates from DNA and RNA

D. Phosphatases iv. Taq DNA pol d. Links 5′-phosphate and 3′-hydroxyl ends via phosphodiester bond

TLS Online TPP Program

#Question id: 12912

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Name the enzyme which separates the double-helical DNA into single strands.

TLS Online TPP Program

#Question id: 12913

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

________ involves the size analysis of restriction fragments produced by several restriction enzymes individually and in combination.

TLS Online TPP Program

#Question id: 12914

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

In Electrophoresis of DNA the gel is first soaked in the alkali then it is transferred to the membrane so that the ________

TLS Online TPP Program

#Question id: 12915

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which of the following statement is not correct about PCR.

TLS Online TPP Program

#Question id: 12916

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which statement is correct for Zoo blotting?