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TLS Online TPP Program

#Question id: 465

If the standard reduction potential of a certain half-reaction is -0.30 V, which statement below is true for this half-reaction to proceed as a reduction?

#SCPH05 I Biotechnology

  1. This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential greater than +0.30 V.

  2. This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential greater than -0.30V 

  3. This half-reaction will proceed if it is coupled to another half-reaction that has a standard reduction potential less than -0.30 V.

  4. It doesnʹt matter what half-reaction this is coupled with, it will proceed spontaneously.

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TLS Online TPP Program

#Question id: 1555

#SCPH05 I Biotechnology

which type of amino acid in polypeptide position 9 is favoured interaction which MHC class 1?
TLS Online TPP Program

#Question id: 22957

#SCPH06 I Botany

floral organ development is controlled by overlapping expressions of A class , B class and C class genes in different whorls. In an Arabidopsis mutant, the floral whorls had following pattern:
Sepal àSepal àcarpel àcarpel 
Mutation in which one of the following class of gene causes above pattern.  
TLS Online TPP Program

#Question id: 14166

#SCPH05 I Biotechnology

Stoichiometric equations are used to represent growth of microorganisms provided a ' molecular formula' for the cells is available. The molecular formula for biomass is obtained by measuring the amounts of C, N, H, O and other elements in cells. For a particular bacterial strain, the molecular formula was determined to be C4.4H7.30 1.2N0.86 . These bacteria are grown under aerobic conditions with hexadecane (C16H34) as substrate. The reaction equation describing growth is:

                             

You have been put in charge of a small fermenter for growing the bacteria and aim to produce 2.5 kg of cells for inoculation of a pilot-scale reactor. What minimum amount of hexadecane substrate must be contained in your culture medium? 
TLS Online TPP Program

#Question id: 3268

#SCPH28 | Zoology

A population of insects is in Hardy-Weinberg equilibrium for a gene with alleles A = orange and a = yellow eyes. There are 91% orange and 9% yellow individuals in the population. If the fitness of the yellow phenotype suddenly drops to zero, what will be the allele frequency in the next generation?
TLS Online TPP Program

#Question id: 19700

#SCPH01 Biochemistry

Different leads are used to record ECG of humans, these leads can be either bipolar or unipolar. Which one of the following is NOT unipolar leads?