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TLS Online TPP Program

#Question id: 470

If glucose labeled with 14C in C-1 were fed to yeast carrying out the ethanol fermentation, where would the 14C label be in the products?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. In C-1 of ethanol and CO2

  2. In C-1 of ethanol only

  3. In C-2 (methyl group) of ethanol only

  4. In C-2 of ethanol and CO2

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TLS Online TPP Program

#Question id: 14089

#General Aptitude

 If the orthocentre and the centroid of a triangle are the same, then the triangle is :
TLS Online TPP Program

#Question id: 12401

#Unit 6. System Physiology – Plant

IAA enters the cell either passively in the undissociated form (IAAH) or by transporter in the anionic form (IAA-) , which one of the following  transporter are involved in influx of the anionic form of auxin?
TLS Online TPP Program

#Question id: 2761

#Unit 2. Cellular Organization

Short micro RNAs (miRNAs)
TLS Online TPP Program

#Question id: 1866

#Unit 4. Cell Communication and Cell Signaling

What does HIV binds to?
TLS Online TPP Program

#Question id: 5238

#Unit 5. Developmental Biology

all tissue types possess a unique stem cell niche, and despite many differences among the niche architecture of different tissues, several common principles of stem cell regulation can be applied to all environments. These principles involve extracellular mechanisms leading to intracellular changes that regulate stem cell behavior.

Column A

Column B

I. Extracellular regulatory mechanisms

i. Regulation by endocrine, paracrine, or juxtacrine mechanisms

II. Intracellular regulatory mechanisms

ii. Regulation by a network of transcription factors

iii. Epigenetic regulation

iv. Regulation by cell-to-cell and cell-to-matrix adhesions

v. Regulation by cytoplasmic determinants

Match the following regulatory mechanism (column A) with the factors that regulate stem cell behavior (column B).