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TLS Online TPP Program

#Question id: 26582

Select the incorrect statement

#Unit 3. Fundamental Processes
  1. Interactions between EF-G–GDP and the ribosome are thought to “unlock” the ribosome
  2. Interactions between EF-G–GDP and the ribosome are thought to “lock” the ribosome
  3. There are “gates” that separate the A-, P-, and E-sites and EF-G–GDP is said to unlock the ribosome by opening these gates. 
  4.  Second, the changed EF-G–GDP conformation binds to the A-site of the decoding center.
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TLS Online TPP Program

#Question id: 19995

#Unit 2. Cellular Organization

Drosophila melanogaster also shows C-Value paradox in terms of their number of genes. If Drosophila have total 1 x 108 base pairs and average size of one gene is 2000 bp then mathematically gene capacity of Drosophila is 
TLS Online TPP Program

#Question id: 17081

#Unit 12. Applied Biology

What type of drug is Aminopterin and what it is used for
TLS Online TPP Program

#Question id: 1511

#Unit 4. Cell Communication and Cell Signaling

Most tumors induce the formation of new blood vessels that invade the tumor and nourish it, a process called angiogenesis. Following statements are regarding to angiogenesis.

A. Angiogenesis allow the tumor to increase in size and thus increase the probability that additional harmful mutations will occur.

B. Angiogenesis also facilitates the process of metastasis.

C. The VEGF receptors, which are tyrosine kinases, regulate several aspects of angiogenesis such as endothelial cell survival and growth, endothelial cell migration, and vessel wall permeability.

D. VEGF expression can be induced by oncogenes and by hypoxia, defined as a partial pressure of oxygen of more than 7 mmHg.

E. A transcription factor VEGF is activated in low-oxygen conditions and which binds to and induces transcription of the HIF-1 gene which  affect the probability of tumor growth by angiogenesis.

Which of the following statements are incorrect?
TLS Online TPP Program

#Question id: 3730

#Unit 3. Fundamental Processes

Which is not part of the replisome?
TLS Online TPP Program

#Question id: 4058

#Unit 3. Fundamental Processes

The mechanism of pre-tRNA splicing differs in from the mechanisms used by self-splicing introns and spliceosomes as