TLS Online TPP Program

#Question id: 4034


Which of the following would most likely occur if an in vitro transcription assay is performed using a cell extract containing an alpha subunit without the C-terminal domain? 

#Unit 3. Fundamental Processes
  1. Polymerase would become tightly associated with the promoter. 

  2. Polymerase would become more susceptible to proteolysis. 

  3. Transcription will be accelerated. 

  4. Polymerase complex would be loosely associated with the promoter. 

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TLS Online TPP Program

#Question id: 1524

#Unit 4. Cell Communication and Cell Signaling

Tumor-suppressor genes generally encode proteins that in one way or another inhibit cell proliferation. Loss-of-function mutations in one or more of these proliferation inhibitory proteins contribute to the development of many cancers. Prominent among the classes of proteins encoded by tumor-suppressor genes are:

A. Intracellular proteins that regulate or inhibit entry into the cell cycle

B. Receptors or signal transducers for secreted hormones or developmental signals that inhibit cell proliferation

C. Checkpoint pathway proteins that arrest the cell cycle if DNA is damaged

D. Proteins that promote apoptosis

Following genes belongs to the above class-

i. p53

ii. Rb

iii.TGF- β

iv. Caspase 3 and 7

which of the following match is correct?

TLS Online TPP Program

#Question id: 4203

#Unit 3. Fundamental Processes

 Translation begins to be terminated when

TLS Online TPP Program

#Question id: 356

#Unit 1. Molecules and their Interaction Relevant to Biology

How does 0.5 M sucrose (molecular mass 342) solution compare to 0.5 M glucose (molecular mass 180) solution?

TLS Online TPP Program

#Question id: 33337

#Unit 2. Cellular Organization

Which of the following protein forms a spiral structure on the inner surface of the cytoplasmic membrane and oscillates back and forth from pole to pole? 

TLS Online TPP Program

#Question id: 28770

#Unit 2. Cellular Organization

Autophagy can be either;
I- Nonselective autophagy
II- Selective autophagy
a) Closure of the membrane cup to form autophagosome
b) a bulk portion of cytoplasm is sequestered in autophagosomes
c) used to destroy invading microbes
d) Nucleation of autophagosome formation by ATG1
Find out the correct match statements of about selective as well as nonselective autophagy?