In the context of phage infection, "induction" means
a. the transition from a lysogenic to a lytic state.
b. promotion of the expression of phage genes.
c. release of phage particles from a host cell.
d. integration of phage DNA into the bacterial chromosome.
e. packaging of phage DNA into protein coats.
Ans: a
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Hair cells in the vertebrate ear are responsible for transducing sound pressure waves. Ion channels in the hair cell membrane open when _____
A) a chemical ligand binds to the ion channel B) light is absorbed by a molecule in the membrane C) the cell membrane reaches a threshold voltage D) the membrane is distorted mechanically
When compared to the solution, the egg that gained weight was ______.
Three (3) eggs are boiled and all weigh 2g. The eggs are placed in a 15% solution of NaCl and reweighed after 30 minutes.
A. Hypertonic
B. Hypotonic
C. Isotonic
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
Gather Content
· What do you know about osmosis? What other information is related to the question?
Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In photosynthesis, carbon dioxide enters the leaf of a plant through its open stomata
Indicate whether the statement is true or false
The productivity of an ecosystem
A. can be measured in biomass produced. B. can change depending on the stage of succession. C. is dependent on such abiotic factors as; temperature, water, and sunlight. D. All of these answers are true.