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TLS Online TPP Program

#Question id: 28639

Degradation of Sic1 is induced by___

#Unit 2. Cellular Organization
  1. Phosphorylation followed by ubiquitinylation
  2. Ubiquitinylation followed by phosphorylation
  3. Only phosphorylation
  4. Only ubiquitinylation
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TLS Online TPP Program

#Question id: 28804

#Unit 2. Cellular Organization

VASP is____
a)proline-rich
b)protect the end of the growing filament from CapZ
c)a pathogenic surface protein
d)involve to holding the end of the newly formed filament

Following are statements about VASP, except?
TLS Online TPP Program

#Question id: 2986

#Unit 2. Cellular Organization

During ubiquitin-mediated protein degradation in various events of cell cycle, ubiquitin-protein ligases ubiquitinylate substrate proteins, marking them for degradation by proteasomes. Cyclins are degraded through the action of two different ubiquitin-protein ligases, SCF and the anaphase-promoting complex or cyclosome. Following statements are regarding to SCF and APC/C.

A. SCF controls the G1–S phase transition by degrading G1/S phase cyclins and, CDK inhibitory proteins.

B. APC/C degrades S phase and mitotic cyclins, thereby promoting the exit from mitosis.

C. SCF and APC/C are multi-subunit ubiquitin-protein ligases that belong to the RING finger family of ubiquitin protein ligases.

D. SCF and APC/C belong to the different ubiquitin-protein ligase family, their regulation is same.

E. SCF recognizes its substrates only when they are phosphorylated.

F. SCF and APC/C both recognizes its substrates only when they are phosphorylated.

Which of the following is incorrect?
TLS Online TPP Program

#Question id: 1106

#Unit 4. Cell Communication and Cell Signaling

Protein kinase is an enzyme that functions in which of the following ways?
TLS Online TPP Program

#Question id: 7526

#General Aptitude

Walking from my home, at a speed of 5 km/h, I am 8 minutes late in reaching my office.If I walk at a speed of 8 km/h, I reach 5 minutes late. How far is my office from the house?
TLS Online TPP Program

#Question id: 13204

#Unit 6. System Physiology – Plant

Many of the carriers of Sucrose–H+ symporters in the phloem play various role in transport, most of the transporters are found in source, path, and sink tissues. Some carriers are characterized such as;
a) SUT1, has high-affinity / low-capacity transporter found in the minor veins of source tissues, appears to be important in phloem loading.
b) Important role of SUT1 in phloem loading appears to be complemented by SUT4, which is low-affinity/high-capacity carrier
c) SUT2, appears to function as a sucrose sensor. This is indicated by findings showing that SUT2 is more highly expressed in sink and path tissues than in source leaves.
d) The major sucrose transporters in phloem loading into the companion cells and final uptake into companion cells appears to be the function of SUT4
Which of the following combination is correct?