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TLS Online TPP Program

#Question id: 785

Several types of very short RNAs repress—or silence—expression of genes with homology to those short RNAs. They are produced from a variety of sources and direct the silencing of genes in the following different ways-

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. Triggering destruction of the mRNA encoded by the target gene

  2. Inhibiting translation of the mRNA

  3. Inducing chromatin modifications within the target gene and thereby silencing its transcription

  4. All of the above

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TLS Online TPP Program

#Question id: 10601

#Unit 10. Ecological Principles

following some statement are given about Grime’s triangle that is alternative to r and K selection is correct?

A. Ruderals are adapted to take advantage of habitat disturbance, but these are less competitor 

B. Any species cannot be a good stress tolerator and a good competitor at the same time

C. Mangroves and lichens are good stress tolerant and also good adopted to disturbance

D. Many perennial herbs are good adapted to habitat disturbance, but these are less competitor 

Which one of the following options represents a combination of correct statements?
TLS Online TPP Program

#Question id: 33495

#Unit 2. Cellular Organization

Polymorphism may be detected at the phenotypic level when 
A. A sequence affects gene function
B. At the restriction fragment level when it affects a restriction enzyme target site, 
C. At the sequence level by direct analysis of DNA.

Which of the above is/are correct statement
TLS Online TPP Program

#Question id: 33363

#Unit 1. Molecules and their Interaction Relevant to Biology

An antibody binds to an antigen with a Kd of 5 X10-8 M. At what concentration of antigen will θ be 0.2
TLS Online TPP Program

#Question id: 4923

#Unit 8. Inheritance Biology

following statement given for Genetic maternal effect are correct?

A- Characteristics are determined by nuclear gene

B- Inherited according to Mendel’s principles

C- In F3 generation, segregation of Dominant trait and recessive trait in ratio of 3:1

D) No Segregation of Trait in F2 generation 
TLS Online TPP Program

#Question id: 1745

#Unit 4. Cell Communication and Cell Signaling

On injection into mice, bovine serum albumin conjugated with dinitrophenol (DNP) behaves as a: