Miotic cyclin levels in early xenopus embryos are regulated by A) degradation by

Question

Miotic cyclin levels in early xenopus embryos are regulated by
A) degradation by MFP
B) synthesis and degradation of their mRNAs
C) phosphorylation
D) degradation by APC

Exit from mitosis depends upon degradation of?
A) cohesion
B) seperase
C) cyclin B
D)securin

Separase initiates sister chromatid segregation at anaphase by cleaving
A) cycling
B) APC
C) cdc20
D) securins

Which of the following is a substrate of Cln2-Cdc28?
A)SBF
B)SPF
C)MPF
D)a and b
E)b and c

Which of the following is targeted by SCF?
A)cdh1
B)cyclin B
C)securing
D)sic1b and c

During G1, pre-replication complexes
A)are phosphorylated by B-type cyclin CKDs
B)are phosphorylated by DDK
C)bind to ORC
D)b and c
E)all of the above

Cycling D/Cdk4 duunctions during
A)G0
B)M
C)G1
D)S
E)G2

Explanation / Answer

1.A) degradation by MFP 2.A) cohesion 3.D) securins 4.E)b and c 5.B)cyclin B 6.A)are phosphorylated by B-type cyclin CKDs 7.C)G1

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