Because Viruses Could Not Be Visualized Using Conventional Microscopes Further

question 13

Multiple Choice

Because viruses could not be visualized using conventional microscopes further progress required the development of techniques for isolating,propagating and analyzing viruses.All of the following are true except:

• A)crystal structure of the tobacco mosaic virus showed that it was made up of RNA and protein
• B)viruses were first observed with an electron microscope
• C)viral DNA has a different structure from that discovered by Watson and Crick
• D)Hershey and Chase demonstrated that the genetic material of some viruses is DNA

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Definitions:

Percentage Of Sales

A financial ratio that compares a particular figure or metric to the total sales of a company.

Capital Intensity Ratio

A measure of how much capital is used in the production process, calculated as the ratio of total assets to sales.

Accounts Receivable

The financial obligations customers hold towards a company for products or services that have been served or benefited from, yet are unpaid.

Full Capacity

The maximum level of output that a company can sustain over a long period without increasing maintenance costs or causing wear and tear on its production assets.