複選題27. Intracellular second messengers include all of the following? (A) Ca2+. (B) diacylglycerol (DAG). (C) cATP. (D) nitric oxide (NO). (E) cGMP

複選題
27. Intracellular second messengers include all of the following?
(A) Ca2⁺.
(B) diacylglycerol (DAG).
(C) cATP.
(D) nitric oxide (NO).
(E) cGMP

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統計： A(4), B(2), C(2), D(2), E(4) #3207348

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複選題30.Which of the following statements is/are TRUE of supercoiling? (A) The relaxed form of DNA is more stable and is therefore the preferred form in the cell. (B) Most organisms maintain their DNA in a slightly overwound state in order to enhance strand separation during transcription and replication. (C) Overwound DNA is in the B form so relaxed DNA has less turns than B-form DNA. (D) Most organisms maintain their DNA in a slightly underwound state in order to compact their DNA. (E) The relaxed form of DNA can only be maintained if the DNA is a closed circle.

複選題
27. Intracellular second messengers include all of the following?
(A) Ca2⁺.
(B) diacylglycerol (DAG).
(C) cATP.
(D) nitric oxide (NO).
(E) cGMP

詳解 (共 1 筆)

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