Question

Describe briefly the following :
a) Origin of replication
b) Bioreactors
c) Downstream processing​

Answer 1

Answer:

(a) Origin of replication is the DNA sequence that serves as a start site for the replication process.

(b) The large customised tanks used to carry out the biological process/reaction at commercial scale are called as bioreactors.

(c) Downstream processing includes stages in the isolation and purification of the biotechnological products.

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Answer 2

Answer:

a) An origin of replication is a sequence of DNA at which replication is initiated on a chromosome, plasmid or virus. ... Larger DNAs have many origins, and DNA replication is initiated at all of them; otherwise, if all replication had to proceed from a single origin, it would take too long to replicate the entire DNA mass.

(b) Bioreactor are vessels in which raw materials are biologically converted into specific products using microbial, plant or human cells. It provides optimal conditions for achieving the desired product by providing optimum growth conditions, pH, substrate salts, vitamins, oxygen, etc. (c) Downstream processing.

(c) Downstream processing − Downstream processing is a method of separation and purification of foreign gene products after the completion of the biosynthetic stage. ... After downstream processing, the product is formulated and is passed through various clinical trials for quality control and other tests.

Explanation:

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