What is the name given to viruses that are single stranded RNA that acts as a template for DNA synthesis
What will be an ideal response?
retroviruses
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At 4:00 p.m. a closed flask of sterile broth is inoculated with 10,000 cells. The lag phase lasts 1 hour. At 9:00 p.m. the log phase culture has a population of 65 million cells. The mean generation time is approximately
A. 10 minutes. B. 40 minutes. C. 20 minutes. D. 30 minutes.
Some observations have suggested to researchers that substances associated with the extracellular matrix may be involved in cell migration. This has been observed with the cell marker CD44 on the surface of cancer cells and their ability to be separate from one another and to easily metastasize to other regions of the body. This is most likely due to the interaction of CD44 and
A) chondrotin sulfate. B) ICAMs. C) hyaluronate. D) fibronectins. E) elastin.
Localization of lesions within a band of skin on one side of the body is a characteristic of the disease (measles/shingles/sporotrichosis)
What will be an ideal response?
What is the metaphase scaffold of eukaryotic chromosomes and what is its role?
What will be an ideal response?