Chromatin is composed of:
A. DNA.
B. protein.
C. DNA and RNA.
D. DNA and protein.
E. RNA and protein.
D
Biology & Microbiology
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Which microscope allows the use of color to enhance contrast?
a. light b. scanning electron c. transmission electron
Biology & Microbiology
Memory cells may inhibit the immune response after an antigen has been neutralized.
a. true b. false
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Bacteriorhodopsin is a light-sensitive pigment found in ____ archaeans used to supply energy for ____ production.
A. halophilic; ATP B. thermophilic; carbohydrate C. methanogenic; methane D. halophilic; carbohydrate E. thermophilic; ATP
Biology & Microbiology
Immunization with (chickenpox/cowpox/monkeypox) will provide protection against smallpox
What will be an ideal response?
Biology & Microbiology