Enzymatic reactions convert products into substrates
a. True
b. False
False
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Which of the following is not true of histone tails?
A. They protrude between the two DNA strands that supercoil around the nucleosome. B. They are the target of numerous chemical modifications. C. They experience changes in net charge, shape, and other properties of histones in response to modifications. D. They are recognized by acetylases and methylases. E. They have enzymatic properties that can covalently modify DNA.
How do fossils provide evidence of evolution? How are scientists able to determine the age of fossils? What will be an ideal response?
If a patient notices a healthcare worker not following suggested precautions,
A) they should leave the healthcare facility immediately. B) they should immediately wash their hands. C) they should immediately bring it to the attention of the healthcare worker.
The function of the lambda cIII protein is
a. to degrade cII. b. to block transcription of cro. c. to maintain lysogeny. d. to integrate lambda DNA into the bacterial host chromosome. e. to protect cII from degradation.