Cyclin A pairs with which CDK to control the cellcycle a) CDK1 b) CDK2 c) CDK4.

Question

Cyclin A pairs with which CDK to control the cellcycle a) CDK1 b) CDK2 c) CDK4. d) CDK6 Degradation of cyclins is controlled by which modification? A) Phosphorylation B) Ubiquitination C) dephosphorylation D) Transcription E) All of the above Which of the following is least related to others on the list? a) Okazaki fragments b) Replication fork c) Telomerase d) DNA polymerase Primers and Probes are involved in detecting: A) Protein B) Polypeptide C) DNA D) Lipid E) Exclude A and B The first amino acid enters into ribosome at which site: a) P site b) A Site c) E Site d) None of the above The Tryptophan model is based on ...mechanism A) Activator mechanism B) Repressor mechanism C) A and B D) None of the above

Explanation / Answer

(45) A and b

Cyclin A pairs with CDK1 and CDK2

(46)b. ubiquitination

degraded of cyclins is regulated by the ubiquitin pathway

(47)c. telomerase

(48)c. DNA

(49)b. A site

The first amino acid enters through the A site.

(50) B. repressor mechanism

tryptophan operon is a repressible operon

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