The most common cause of atypical pneumonia, Mycoplasma pneumoniae, has all the following characteristics except

A) difficult to see with a standard light microscope.
B) no cell wall.
C) one of the smallest self-replicating organisms known.
D) contains more genes than most other bacteria.
E) a parasitic lifestyle inside host cells.


Answer: D

Biology & Microbiology

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A neurologist diagnoses a patient with damage to the hippocampus. This observation is consistent with the difficulties the patient reports with

A. forming memories of recent events. B. effectively coordinating movements once initiated. C. planning movements. D. maintaining a steady and regular heartbeat. E. perceiving tactile stimulation from different regions of their body.

Biology & Microbiology

Which cells alert the adaptive immune system when they detect antigens?

a. eosinophils b. B and T cells c. macrophages d. dendritic cells e. cytokines

Biology & Microbiology

The primary difference between enhancers and promoter-proximal elements is that enhancers _____

A) are transcription factors; promoter-proximal elements are DNA sequences B) enhance transcription; promoter-proximal elements inhibit transcription C) are at considerable distances from the promoter; promoter-proximal elements are close to the promoter D) are DNA sequences; promoter-proximal elements are proteins

Biology & Microbiology

The ________ is a cylindrical organ whose role in reproduction is to deliver the sperm to the female reproductive system

Fill in the blank(s) with correct word

Biology & Microbiology