A dormant, resistant stage produced by some bacteria is a(n) (endospore/spore/vegetative cell).
Fill in the blank(s) with the appropriate word(s).
endospore
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What would be a primary advantage of using an attenuated agent rather than just an antigen from that agent for a vaccine?
A. This is actually a disadvantage-it's much more dangerous to use an attenuated agent over a subunit (single antigen) vaccine due to the possibility of reversion of the microbe to a pathogenic state. B. An attenuated agent strongly stimulates ONLY the antibody production (humoral response) of the adaptive immune system. This provides the best and strongest long-term protection. C. An attenuated agent strongly stimulates ONLY the cytotoxic T cell (CTL, cell-mediated) side of the adaptive immune system. This provides the best and strongest long-term protection. D. An attenuated agent strongly stimulates both the humoral (antibody) AND cell-mediated (T cell) portions of the adaptive immune response, giving the best comprehensive long-term protection available.
How many checkpoints occur during interphase prior to a cell entering mitosis?
a. one b. two c. three d. four
Which of the following has NOT been a basis for classification of the protozoa?
A) means of locomotion B) genetic sequences C) photosynthetic ability D) habitat E) ability to form a dormant stage
What is made by adding Streptococcus thermophilus and Lactobacillus bulgaricus to milk?
A. Sour cream B. Butter C. Tofu D. Cheese E. Yogurt