TLS Online TPP Program

#Question id: 3258


Which of the following incorrect about genetic drift

#Unit 11. Evolution and Behavior
  1. There is no link with fitness    

  2. Change the frequency of one allele either positively or negatively at each generation

  3. Genetic drift responsible for directional changes in allele frequencies over several generations.

  4. This is micro evolutionary force

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TLS Online TPP Program

#Question id: 19787

#Unit 13. Methods in Biology

Polymerase chain reaction is based on___
a) Thermal modulation
b) pH dependent
c) Formation of amplicons by inserting some inputs for analysing its efficiency
d) Inter-complementary primers formation

TLS Online TPP Program

#Question id: 19788

#Unit 13. Methods in Biology

Thermal modulation are used in PCR for the function of__

TLS Online TPP Program

#Question id: 19789

#Unit 13. Methods in Biology

How to determine the size of PCR product?

TLS Online TPP Program

#Question id: 19790

#Unit 13. Methods in Biology

What will be the major difference between the PCR and replication is?

TLS Online TPP Program

#Question id: 19791

#Unit 13. Methods in Biology

Which of the following statements about polymerase chain reaction is correct?
a) PCR denaturation temperature calculated by using Y = X (1+E)n
b) Size of the primer negatively affects the efficiency of PCR
c) Standard PCR doesn’t efficiently amplify sequence much longer than about 5kb.
d) Primer annealing of PCR at 550C for 1.5 min.
e) Time taken for each cycle of PCR considerably longer than 3 min.

TLS Online TPP Program

#Question id: 19840

#Unit 13. Methods in Biology

Match the following source of thermostable DNA polymerase with proofreading (3’−5’ exonuclease) activity;

                 DNA Polymerase

                        Sources

 

 A- Tma

 

i) Pyrococcus furiosus

 

 B- Deep VentTM

 

ii) Pyrococcus woesi

 

 C- Tli

 

iii)  Thermotoga maritima

 

 D- Pfu

 

iv) Pyrococcus sp.

 

 E- Pwo

 

v) Thermococcus litoralis