Practice Questions

TLS Online TPP Program

#Question id: 19136

Which of the following statement is correct about dot matrix?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Parallel diagonal lines within the matrix represent repetitive regions of the sequences.
It is a graphical way of comparing two sequences in a two dimensional matrix.
If there are interruptions in the middle of a diagonal line, they indicate insertions or deletions.
The residue matching is according to a particular scoring matrix.

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TLS Online TPP Program

#Question id: 14403

#Section 5: Bioprocess Engineering and Process Biotechnology

Invertase is immobilised in ion-exchange resin of average diameter 1 mm. The amount of enzyme in the beads is measured by protein assay as 0.05 kg m ^-3. 20 cm ^3 beads are packed into a small column reactor; 75 ml sucrose solution at a concentration of 16 mM is pumped rapidly through the bed. In another reactor an identical quantity of free enzyme is mixed into the same volume of sucrose solution. Assume the kinetic parameters for free and immobilised enzyme are equal: K,,, is 8.8 mM and the turnover number is 2.4 x 10 gmol glucose (g enzyme)-'s^-1. The effective diffusivity of sucrose in the ion-exchange resin is 2 x 10^-6cm2s 4. What is the rate of reaction by free enzyme?

TLS Online TPP Program

#Question id: 14404

#Section 5: Bioprocess Engineering and Process Biotechnology

Ultrafiltration is used to filtrate molecules of size

TLS Online TPP Program

#Question id: 14405

#Section 5: Bioprocess Engineering and Process Biotechnology

If frequency adopted risk of contamination is 1 in 1000. For unsterile broth which having 10^11 viable organism then calculate the del factor?

TLS Online TPP Program

#Question id: 14406

#Section 2: General Biology

Some members of the genus Proteus, as well as other genera, can lose their cell walls and swell into irregularly shaped cells called as