TLS Online TPP Program

#Question id: 11221


The heart rate of a vertebrate will decrease in response to the arrival of ________.

#Unit 7. System Physiology – Animal
  1. acetylcholine
  2. endorphin
  3. nitric oxide
  4. gamma-aminobutyric acid (GABA)

More Questions
TLS Online TPP Program

#Question id: 893

#Unit 1. Molecules and their Interaction Relevant to Biology

Like E.coli eukaryotic cells also contain chaperonin, which of the following in eukaryotic chapronin is incorrect?

TLS Online TPP Program

#Question id: 4114

#Unit 3. Fundamental Processes

Splice-site recognition is prone to two kinds of errors. First, splice sites can be skipped, with components bound at, for example, a given 5’ splice site pairing with those at a 3’ site beyond the correct one. Ways in which the accuracy of splice-site selection can be enhanced are as

A. The factors that recognize that site are transferred from the polymerase carboxy-terminal “tail” onto the RNA. Once in place, the 5’ splice site components are poised to interact with those other factors that bind to the next 3’ splice site to be synthesized.

B. SR (serine–arginine-rich) proteins bind to sequences called exonic splicing enhancers (ESEs) within the exons. SR proteins bound to these sites recruit the splicing machinery to the nearby splice sites to ensure correct splicing

C. By recruiting splicing factors to each side of a given exon, this process encourages the so-called “exon definition, contribute to correct splicing

D. Alternative splicing is intentional missplicing mechanism

Which of the following is INCORRECT?

TLS Online TPP Program

#Question id: 19471

#Unit 12. Applied Biology

The gene gox has been expressed in plants in combination with which other bacterium gene

TLS Online TPP Program

#Question id: 15365

#Unit 4. Cell Communication and Cell Signaling

The MDM2 protein in its active form can form a complex with p53, inhibiting the transcription factor and causing p53 ubiquitinylation and subsequent proteasomal degradation, ATM phosphorylates MDM2 to inactivate it, causing increased stabilization of p53, but there is one another gene or key regulator which controls the level of MDM2;

TLS Online TPP Program

#Question id: 26433

#Unit 3. Fundamental Processes

Which of the following factor is absent in eukaryotic repair system