HARD
Earn 100

Describe briefly PCR with diagram.

Important Questions on Biotechnology - Principles and Processes

HARD
Name the most commonly used bioreactor in biotechnology labs. Mention the most essential components this bioreactor must have so as to provide the optimum conditions to the culture medium, resulting in production of large volume of the desired product.
MEDIUM
Features of sparged stirred tank bioreactor that differ from simple stirred bioreactors
I) More bubble formation
II) Decrease the surface area for O2 transfer
III) It has foam control system
MEDIUM

Which one among the following primer pairs would amplify the fragment of DNA given below?

5'-CTAGTCGTCGAT-N300-GACTGAGCTGAGCTG-3'

3'·GATCAGCAGCTA-(N)300-CTGACTCGACTCGAC-5'

MEDIUM

Match the following techniques or instruments with their usage:

(a) Bioreactor (i) Separation of DNA fragments
(b) Electrophoresis (ii) Production of large quantities of products
(c) PCR (iii) Detection of pathogen, based on antigen-antibody reaction
(d) ELISA (iv) Amplification of nucleic acids

Select the correct option from following:

MEDIUM
If the initial number of templets DNA molecules in a PCR reaction is 1000, the number of product DNA molecules at the end of 20 cycles will be closest to
EASY
Nowadays, the early diagnosis of bacterial or viral infection in humans is possible using
EASY
The process of separation and purification of expressed protein before marketing is called