What is transmission electron microscope used for

 to view thin specimens

There are two main models of an electron microscope – the transmission EM (TEM) and the scanning EM (SEM). The transmission electron microscope is utilized to observe thin specimens (tissue sections, molecules, etc) by which electrons can move to create a projection image. A normal TEM can reach the highest magnification level of about 1,000,000x.

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

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answer; both surfaces of the membrane are nonpermeable