TLS Online TPP Program

#Question id: 17075


What are the disadvantages of using polyclonal antibodies?

#SCPH28 | Zoology
  1. Batch-to-batch variability as produced in different animals at different times
  2. High chance of cross-reactivity due to a recognition of multiple epitopes
  3. Production cost is too high
  4. Both A& B
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TLS Online TPP Program

#Question id: 9591

#SCPH05 I Biotechnology

In light reaction, the funneling of excitation from the antenna system toward the reaction centre has been shown,

a.) The excited-state energy of pigments increases with distance from the reaction centre; that is, pigments closer to the reaction centre are lower in energy than those farther from the reaction centre

b.) The energy gradient ensures that excitation transfer toward the reaction centre is energetically favorable and that excitation transfer back out to the peripheral portions of the antenna is energetically unfavourable

c.) Some energy is lost as heat to the environment by this process, but under optimal conditions almost all the excitation energy absorbed in the antenna complexes can be delivered to the reaction centre

d.) The excited-state energy of  pigments decreases with distance from the reaction centre

Which of the following above combination is true?

TLS Online TPP Program

#Question id: 19215

#SCPH28 | Zoology

After the initial attachment step, A. tumefaciens produces a network of ________fibrils that bind the bacterium tightly to the plant cell surface. 

TLS Online TPP Program

#Question id: 23255

#SCPH06 I Botany

From where do these centromeric probes are derived from the 
1. Highly repetitive DNA sequences
2. Alpha-satellite DNA sequences
3. Less repetitive DNA sequences
4. Beta-satellite DNA sequences
Which of the following option has correct combination?

TLS Online TPP Program

#Question id: 27700

#Research Methodology

“Deduction and induction are a part of system of reasoning” – stated by

TLS Online TPP Program

#Question id: 1018

#SCPH06 I Botany

Diseases such as ulcers and cardiovascular disease