Biochem help :(??

[Roxanita]

Hi :smile:
I have seen great people on this forum, can anybody please help me with this question?

Q- The majority of cellular proteins and RNA are synthesized throughout the cell cycle and are only interrupted briefly during M phase. Synthesis of which of the following proteins occurs predominantly in S phase of the cell cycle?

A) Cyclins

B) DNases

C) Histones

D) RNA polymerases

E) snRNPs (small nuclear ribonucleoproteins)

F) Tubulins

thanks in advance :shy:

[iansmith]

Do you know what is the major evenet during the S-phase? This should eliminated four of the choice that do not have any related role with to this event. One choice has a direct role in contolling the S-phase events whereas the last remaining protein is an absolute require for DNA stability.

this paper gives the answer
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=325892

[Roxanita]

I read about it. Histones is the answer. Sorry I am studying Biochemistry at med school, but was trying to solve questions before doing a good review. Sorry.
Thanks again.