Which type of meningitis is also a frequent cause of pneumonia?

a) Meningococcal meningitis
b) Pneumococcal meningitis
c) Listeriosis
d) Haemophilus influenzae meningitis


Ans: b) Pneumococcal meningitis

Biology & Microbiology

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Viral envelopes are composed of

A. lipids. B. carbohydrates. C. proteins. D. All of the choices are correct.

Biology & Microbiology

Oxygen released by _____ accumulated in the atmosphere and produced the ozone layer

a. archaeans b. aerobic bacteria c. cyanobacteria d. early eukaryotes

Biology & Microbiology

The pre-embryo becomes a hollow ball of cells with a fluid-filled cavity by about day 6 of development. This stage is called a ________

A) blastula B) blastocyst C) blastocoel D) morula

Biology & Microbiology

In order to ensure compatibility between the target DNA and the plasmid DNA,

A. gene is amplified by multiplication of cloning host. B. target DNA is removed from cells and isolated. C. target DNA and plasmid are treated with the same restriction endonuclease. D. cloning host is treated with calcium chloride and receives plasmid. E. desired protein is produced by cloning host.

Biology & Microbiology