On the leading strand (sometimes called the forward strand) DNA synthesis can proceed continuously in the 5 ' to 3’ direction as the parental duplex is unwound.

TLS Online TPP Program

#Id: 4463

#Unit 13. Methods in Biology

Scanning tunneling microscopy- uses thin metal (tungsten) probe that scans specimen revealing the bumps and depressions of the atoms on the surface of the specimen

TLS Online TPP Program

#Id: 4464

#Unit 13. Methods in Biology

In an atomic force microscope imaging of the surface is done based on modulation of interaction forces between two atoms.

TLS Online TPP Program

#Id: 4465

#Unit 13. Methods in Biology

Cryoelectron microscopy allows examination of hydrated, unfixed, and unstained specimens in the TEM by maintaining them at -196oC (liquid nitrogen).

TLS Online TPP Program

#Id: 4466

#Unit 13. Methods in Biology

This method has been used to generate models of ribosomes, the muscle calcium pump, and 3-D structure of a poliovirus capsid.

TLS Online TPP Program

#Id: 4467

#Unit 13. Methods in Biology

The total magnification is a product of the magnification of the individual lenses.

Total magnification= 40X*10X

TLS Online TPP Program

#Id: 4468

#Unit 13. Methods in Biology

The smaller the value of D, the better the resolution. The value of D is given by the equation.