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TLS Online TPP Program

#Question id: 15287

Following are postulates of mechanism of differentiation. Which of the following is incorrect?

#Unit 5. Developmental Biology
  1. Every somatic cell nucleus of an organism contains the complete genome established in the fertilized egg, it means the DNAs of all differentiated cells are identical.
  2. The unused genes in differentiated cells are neither destroyed nor mutated; they retain the potential for being expressed.
  3. Only used genes have the potential for being expressed while unused genes  are either destroyed or mutated.
  4. Only a small percentage of the genome is expressed in each cell, and a portion of the RNA synthesized in each cell is specific for that cell type
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TLS Online TPP Program

#Question id: 145

#Unit 1. Molecules and their Interaction Relevant to Biology

The pKaʹs of isoleucineʹs α-Carboxyl group and α-Amino group are 2.3 and 9.8, respectively. Calculate the isoelectric point.
TLS Online TPP Program

#Question id: 23165

#Unit 13. Methods in Biology

For visualizing two proteins which are localized in nucleus through fluorescence microscopy which two sets of dyes can be best used for clear visual?
TLS Online TPP Program

#Question id: 28536

#Unit 5. Developmental Biology

which of the following gene that positively regulate WUS (meristem-promoting gene)?
TLS Online TPP Program

#Question id: 2799

#Unit 2. Cellular Organization

There are five major types of histones in eukaryotic cells. One of these is not part of the structure of nucleosomes and is thought to participate in forming the 30-nm condensed chromatin fiber. Which histone is this?
TLS Online TPP Program

#Question id: 459

#Unit 1. Molecules and their Interaction Relevant to Biology

Calculate △G°ʹ for the reaction shown if the mass action ratio, Q, is 5.3 × 102 M-1 and △G is 46 kJ/mol at a temperature of 298 K. (R = 8.315 J/K-mol)

ADP + Pi ⇌ ATP