Practice Questions

TLS Online TPP Program

#Question id: 370

Which of the following statements is true about buffer solutions?

#Unit 1. Molecules and their Interaction Relevant to Biology

They maintain a constant pH of 7.
They maintain a constant pH when acids are added to them but not when bases are added to them.
They fluctuate in pH when either acids or bases are added to them.
They maintain a relatively constant pH when either acids or bases are added to them.

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TLS Online TPP Program

#Question id: 23594

#General Aptitude

Introducing Sonia, Aamir says, “She is the wife of only nephew of only brother of my mother.” How Sonia is related to Aamir?

TLS Online TPP Program

#Question id: 23993

#General Aptitude

Suppose some students indulge in porno graphic painting in the school's toilets and other places on walls and you nab a student busy with the work, what option will you prefer with the students?

TLS Online TPP Program

#Question id: 24605

#Unit 2. Cellular Organization

Which of the following phenomenon will be affected most if exon – intron undergoes single base substitution

TLS Online TPP Program

#Question id: 26508

#Unit 3. Fundamental Processes

Which of the following are true regarding the splicing of tRNA

a.RnaseP cuts at 5’ end

b.RnaseD cuts at 3’ end

c.Base modification followed by CCA addition by specific polymerase

d.And then final script of 78 bp formed

TLS Online TPP Program

#Question id: 17076

#Unit 12. Applied Biology

The various advantages of serum-free media could be

1. Improved reproducibility of results from different laboratories

2. Easier downstream processing of products from cultured cells

3. Biassays are free from interference due to serum proteins

4. They permit selective culture of diffrentiated cell types from the heterogeneous cultures

Which of the statements are true?