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+--- Thread: Bio Q - usmleover7 (/showthread.php?tid=506696)
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Bio Q - usmleover7 - ArchivalUser - 05-15-2010
Which protein is secreted in S phase of the cell cycle?
A) Cyclins
B) DNases
C) Histones
D) RNA polymerases
E) snRNPs (small nuclear ribonucleoproteins)
F) Tubulins
0 - ArchivalUser - 05-15-2010
histones are synthesized ( not secreted!) in the S phase..
cyclins are synthesized in G1 and G2..
Polymerases: G1 and G2
SnRNP's, same thing..
tubulins: during M phase..
Dnases, not sure about those!!
0 - ArchivalUser - 05-15-2010
DNases: i think they are expressed in G2: if any mistake was made during replication, they would function to nick, and hydrolyze those mismatched, if any occured!!
0 - ArchivalUser - 05-15-2010
dd
0 - ArchivalUser - 05-16-2010
E?
0 - ArchivalUser - 05-16-2010
c
0 - ArchivalUser - 05-19-2010
so wats the correct answer usmleover??
0 - ArchivalUser - 05-19-2010
dddddddddd
synthesis phase
protein synthesis
rna polymerase
not too sure
0 - ArchivalUser - 05-19-2010
RNA polymerases main function is to transcribe DNA into RNA... which is part of the gene expression.. and gene expression, as a process, occurs ''mainly'' in G1, G0, G2 phases..
0 - ArchivalUser - 05-20-2010
USMLEOVER>>>> where are u....
right answer dude..???