Bacteria in the ?-proteobacterial clade ________ are the most abundant organisms on Earth and demonstrate unique adaptations to life in the oligotrophic open ocean.
What will be an ideal response?
SAR11, SAR 11, Sargasso Sea 11
Biology & Microbiology
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How did Okazaki show that DNA synthesis is semidiscontinuous?
What will be an ideal response?
Biology & Microbiology
Arrange the steps of antibody-mediated immunity in the proper order
1. Plasma cells secrete antibodies. 2. Helper T cells interact with B cells displaying the same antigen-MHC complex. 3. Contact with antigen. 4. Clones of B cells produced. 5. Fragmentation of antigen.
a. 3, 2, 5, 1, 4 b. 3, 5, 2, 4, 1 c. 1, 3, 5, 2, 4 d. 4, 3, 2, 1, 5 e. 5, 3, 4, 2, 1
Biology & Microbiology
The direct yield of ATP from the electron transport system is:
1.2 2.8 3.32 4.36 5.48
Biology & Microbiology
All proteins are enzymes.
Answer the following statement true (T) or false (F)
Biology & Microbiology