Microcheck 142

Various hosts are required to grow different viruses. These include whole animals, embryonated chicken eggs, and cells taken from vertebrates. In constrast to normal cells which divide 50-100 times, cells taken from tumors divide indefinitely. The animal viruses that lyse their host cells can be assayed by counting plaques.

■ Which of the methods used in quantitating viruses requires an electron microscope?

■ Why is it necessary to continually make new primary cultures of normal cells?

■ Would you expect the number of virions to be the same if you measured them by the plaque assay or by counting using the electron microscope? Explain your answer.

Getting Rid Of Warts Forever

Getting Rid Of Warts Forever

All wart sufferers, this is the day to stop the shame. How I Got Rid Of My Warts Forever and How You Can Get Rid Of Warts Naturally In 3 Days. With No Blisters, No Scars, And No Pain Without medications or expensive procedures. All by applying a simple, very natural and unbelievable FREE substance that can be found in almost every household.

Get My Free Ebook

Post a comment