The scientist who first succeeded in reconstituting complete, full functional 30S bacterial ribosomal subunits was
A) Stanley Prusiner
B) Max Perutz
C) Linus Pauling
D) Masayasu Nomura
E) Heinz Fraenkel-Conrat
Ans: D) Masayasu Nomura
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Based on your knowledge of cost-benefit analysis, why would you expect some white-fronted bee-eaters to fly very far away from their nests to forage when there are food sources nearby?
A) There might be some plentiful food sources further away. B) Competition for food is too intense near the nest. C) Food near the nest is usually of lower quality. D) Predation is highest closest to the nest.
Most cases of pharyngitis are caused by Group A ß-hemolytic streptococci
Indicate whether the statement is true or false
When a control agent targets the metabolic processes of microbial cells, active younger cells typically die more rapidly than older cells.
Answer the following statement true (T) or false (F)
Which of the following statements is false?
(a) Mitotic Cdk must be phosphorylated by an activating kinase (Cak) before it is active. (b) Phosphorylation of mitotic Cdk by the inhibitory kinase (Wee1) makes the Cdk inactive, even if it is phosphorylated by the activating kinase. (c) Active M-Cdk phosphorylates the activating phosphatase (Cdc25) in a positive feedback loop. (d) The activating phosphatase (Cdc25) removes all phosphates from mitotic Cdk so that M-Cdk will be active.