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TLS Online TPP Program

#Question id: 12757

Biomanipulation can best be described as

#Part-B Specialized Branches in Biotechnology
  1. Removing many of the next higher trophic level organisms so that the struggling trophic level below can recover.
  2. A means of reversing the effects of pollution by applying antidote chemicals that have a neutralizing effect on the community.
  3. An example of how one would use bottom-up model for ecosystem restoration.
  4. Adjusting the population numbers of each of the trophic levels back to the numbers that they were before man started disturbing ecosystems.
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TLS Online TPP Program

#Question id: 5429

#Part-A Aptitude & General Biotechnology

Assume that three loci, each with two alleles (A and a, B and b, C and c), determine the differences in height between two homozygous strains of a plant. These genes are additive and equal in their effects on plant height. One strain (aabbcc) is 10 cm in height. The other strain (AABBCC) is 22 cm in height. The two strains are crossed, and the resulting F1 are interbred to produce 1000 F2 progeny. what is number of F2 progeny having intermediate height?
TLS Online TPP Program

#Question id: 11060

#Part-B Specialized Branches in Biotechnology

A healthy, 25-year-old medical student participates in a 10-km charity run for the American Heart Association. Which of the following muscles does the student use (contract) during expiration?
TLS Online TPP Program

#Question id: 12714

#Part-B Specialized Branches in Biotechnology

Physiological and biochemical perturbations in plants caused by fluctuations in the abiotic environment, given column I with environmental factor and with its effects in the form of primary effects  in column II and secondary effects  in column III

 

            COLUMN I 

      (environmental factor )

 

              COLUMN II

           (primary effects)

 

            COLUMN III

        (secondary effects)

 

A) Water deficit

 

 

i) Hypoxia,  Anoxia

 

a) Membrane dysfunction

 

B) High temperature

 

 

ii) ROS production

 

b) Reduced cellular and metabolic activities,

Leaf abscission,

Ion cytotoxicity and Cavitation

 

 

C) Trace element toxicity

 

 

iii) Photo inhibition

 

c) Reduced respiration,    

Fermentative metabolism,       Inadequate ATP production ,

 ROS production and

 Stomatal closure

 

D) Flooding and soil compaction

 

 

iv) Membrane destabilization

 

d) Inhibition of PSII repair

 

E) Chilling

 

v) Cell dehydration and Hydraulic resistance

 

e) Disruption of metabolism

 

F) High light intensity

 

 

 

f) Photosynthetic and respiratory inhibition, ROS production

 

Find out the correct combination of given above column;
TLS Online TPP Program

#Question id: 19194

#Part-A Aptitude & General Biotechnology

What is the second primer in the case of 5’ RACE?
TLS Online TPP Program

#Question id: 14278

#Part-A Aptitude & General Biotechnology

Stirrer has a power number (Np) 10. If the stirrer speed (N) is 1s^-1, its diameter D=1m and the density of the medium is 1000 kg/m^3, the ungassed power input (P) in watts is