Which type of microscope bombards a whole, metal-coated specimen with electrons moving back and forth over it?
A. Phase-contrast
B. Transmission electron
C. Fluorescence
D. Differential interference contrast
E. Scanning electron
Answer: E
You might also like to view...
Relatively small organic molecules with a central carbon atom which is bonded to a carboxyl group, an amino group, a carbon containing group, and a hydrogen atom are called:
A. amino acids. B. fatty acids. C. enzymes. D. peptides. E. nucleotides.
Hemoglobin transports oxygen in the blood and consists of a chain of 146 amino acids. How many different types of amino acids are used to construct proteins?
A. 2 B. 20 C. 146 D. 200
What color develops when I2KI reacts with starches in a sample?
a. Blue b. Blue-green c. Purple d. Red
Which of the following is not a viral order in the classification system?
A. Caudovirales B. Mononegavirales C. Vaccinia virus D. Nidovirales