Question

molecular biology

16. Histone acetyltransferases would be directly involved in which of the following? A. Formation of open chromatin B. Movement of the nucleosome C. Acetylation of lysines D. Termination of gene expression E. All of the above are true. 17. What functions are accomplished by the primosome? A. Tracking along DNA B. Tracking along DNA, separating double-stranded DNA C. Tracking along DNA, separating double-stranded DNA, synthesizing RNA primers D. Tracking along DNA, separating double-stranded DNA, synthesizing RNA primers, adding nucleotides E. None of the above is correct synthesized DNA molecule? A. The hydrogen bonding between purines and pyrimidines is stable B. The DNA polymerase is unlikely to form bonds between nucleotides if they are mismatched C. The DNA polymerase has exonuclease functions D. The DNA polymerase has the ability to change the structure of the base in order to form the correct bond 19. If CAP could not bind to its CAP site, then what would be the result? Assume lactose is present in each scenario. A. Transcription would be difficult to repress in the presence of glucose B. Transcription would be difficult to activate in the presence of glucose C. Transcription would be difficult to activate in the absence of glucose D. Transcription would be difficult to repress in the absence of glucose

Answer 1

16. C. Acetylation of lysines.

17.c. tracking along DNA, sperating double stranded DNA, synthesizing RNA primers.

18. D. The DNA polymerase has ability to change the structure of base in order to form the correct bond.

19.b. transcription would be difficult to activate in presence of glucose