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
Define the term henpaphrodite. Give one example
The term phylum was given by (a) Cuvier (b) Haeckel (c) Theophrastus (d) Linnaeus.
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