TLS Online TPP Program

#Question id: 3255


The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

#Section 3: Genetics, Cellular and Molecular Biology
  1. Disruptive natural selection                

  2. Stabilize natural selection   

  3. Directional natural selection                    

  4. Cyclic natural selection 

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TLS Online TPP Program

#Question id: 14356

#Section 5: Bioprocess Engineering and Process Biotechnology

 In Luedeking—Piret equation, if = 0 then product is 

TLS Online TPP Program

#Question id: 14357

#Section 5: Bioprocess Engineering and Process Biotechnology

Milk is pasteurized if it is heated to 630C for 30 min, but if it is heated to 74°C it only needs 15 s for the same result. Find the activation energy of this sterilization process.  J/mol 

TLS Online TPP Program

#Question id: 14358

#Section 5: Bioprocess Engineering and Process Biotechnology

One liter per minute of liquid containing A and B (CA0 = 0.10 mollliter, CB() = 0.01 mollliter, Cco=0) flow into a mixed reactor of volume V = 1 liter. The materials react in a complex manner for which the stoichiometry is unknown. The outlet stream from the reactor contains A, B, and C (CAf = 0.02 mollliter, CBf = 0.03 mollliter, Cci = 0.04 mollliter), as shown in fig. 


Find the rate of reaction of A, B, and C for the conditions within the reactor  mol/liter.min 

TLS Online TPP Program

#Question id: 14359

#Section 5: Bioprocess Engineering and Process Biotechnology

How many enzyme units are there in 1 katal? 

TLS Online TPP Program

#Question id: 14360

#Section 5: Bioprocess Engineering and Process Biotechnology

1 pg of an enzyme (Mr 160 000) converts 0.192 pmol/min. This enzyme is made up of four subunits. Calculate turnover number 

TLS Online TPP Program

#Question id: 14361

#Section 5: Bioprocess Engineering and Process Biotechnology

1 m of an enzyme (Mr 160 000) converts 0.192 i.imol/min. This enzyme is made up of four  subunits. Calculate catalytic centre activity