Practice Questions

TLS Online TPP Program

#Question id: 12182

The cell cycle is controlled by protein kinases that comprise a catalytic subunit and a regulatory subunit. Which of the following statement is correct regarding to these subunits?

#SCPH06 I Botany

The catalytic subunits, the cyclin-dependent kinases (CDKs), have no kinase activity unless they are dissociated with a regulatory cyclin subunit.
Each CDK can associate with a small number of different cyclins, which determine the substrate specificity of the complex—that is, which proteins it phosphorylates.
Cyclin-CDK complexes activate or inhibit hundreds of proteins involved in cell cycle progression by phosphorylating or dephosphorylating them at specific regulatory sites.
Proper progression through the cell cycle is governed by activation of the appropriate homodimeric protein kinase complex at the appropriate time.

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TLS Online TPP Program

#Question id: 13070

#SCPH05 I Biotechnology

Antibodies raised against an antigen from one organism will react to a greater or lesser degree with similar antigens from a related organism, depending on how many surface epitopes they share. This has given rise to a systematic method of identification of microorganisms known as______?

TLS Online TPP Program

#Question id: 13070

#SCPH06 I Botany

Antibodies raised against an antigen from one organism will react to a greater or lesser degree with similar antigens from a related organism, depending on how many surface epitopes they share. This has given rise to a systematic method of identification of microorganisms known as______?

TLS Online TPP Program

#Question id: 13070

#SCPH28 | Zoology

Antibodies raised against an antigen from one organism will react to a greater or lesser degree with similar antigens from a related organism, depending on how many surface epitopes they share. This has given rise to a systematic method of identification of microorganisms known as______?

TLS Online TPP Program

#Question id: 13071

#SCPH01 Biochemistry

Modifications of the agglutination reaction involve the use of ________particles, which allow the reaction to be observed more easily in the liquid phase

TLS Online TPP Program

#Question id: 13071

#SCPH05 I Biotechnology

Modifications of the agglutination reaction involve the use of ________particles, which allow the reaction to be observed more easily in the liquid phase

TLS Online TPP Program

#Question id: 13071

#SCPH06 I Botany

Modifications of the agglutination reaction involve the use of ________particles, which allow the reaction to be observed more easily in the liquid phase