Practice Questions

TLS Online TPP Program

#Question id: 370

Which of the following statements is true about buffer solutions?

#SCPH05 I Biotechnology

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: 1584

#I Life Science/ Life Sciences Group – I-V

Which cell type interacts with both the humoral and cell-mediated immune pathways?

TLS Online TPP Program

#Question id: 5214

#SCPH28 | Zoology

What is the most probable explanation for the continued presence of pseudogenes in a genome such as our own?

TLS Online TPP Program

#Question id: 14741

#SCPH05 I Biotechnology

Microbial cell recovery is carried out in a continuous disc-stack centrifuge. The centrifuge is operated at 5000 rpm for separation of baker's yeast. At a feed rate of 60 1/min, 50% of the cells are recovered. At constant speed, solid recovery is inversely proportional to flow rate. What operating speed is required to recover 90% of cells if the flow rate in the centrifuge is maintained at 601/min?

TLS Online TPP Program

#Question id: 14124

#SCPH05 I Biotechnology

which of the following database is the first established sequence pattern database?

TLS Online TPP Program

#Question id: 2346

#SCPH28 | Zoology

The removal of waste products from the amoeba is an example of