Spooling is (1) Collection of isolated DNA (2) Amplification of DNA (3) Cutting of separated DNA bands from the agarose gel (4) Transfer of separated DNA fragments to synthetic membranes
In Recombinant DNA technology antibiotics are used (1) As selectable markers (2) To keep medium bacteria-free (3) to detect alien DNA (4) To impart disease-resistance to the host plant
DNA fragments are (a) negatively charged (b) neutral (c) either positively or negatively charged depending on their size (d) positively charged.
Stirred-tank bioreactors have been designed for (a) purification of product (b) addition of preservatives to the product (c) availability of oxygen throughout the process (d) ensuring anaerobic conditions in the culture vessel.
Which of the following is not a feature of the plasmids? (a) Transferable (b) Single-stranded (c) Independent replication (d) Circular structure