In Xenopus extracts, replication can be initiated if ORC is removed after it has loaded Cdc6 and MCM proteins.

TLS Online TPP Program

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#Unit 3. Fundamental Processes

The phosphorylation pattern on the CTD is dynamic during the elongation process, catalyzed and controlled by multiple protein kinases, including P-TEFb, and phosphatases.

TLS Online TPP Program

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#Unit 13. Methods in Biology

In case of hotstart PCR, After the reaction mixture is prepared, primers can pair to the single-stranded regions in a nonspecific manner. 

A more attractive alternative is to cover the reaction mixture with a plug of inert wax and place the critical reagent on top of this plug. 

TLS Online TPP Program

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#Unit 2. Cellular Organization

Racemase is responsible for converting D amino acid into L form.

TLS Online TPP Program

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#Unit 4. Cell Communication and Cell Signaling

Activated PKB directly phosphorylates and inactivates a protein Bad

TLS Online TPP Program

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#Unit 2. Cellular Organization

Promoter mutations are also cis-acting. If they prevent RNA polymerase from binding at P-lac, the structural genes are never transcribed.