BIOTECHNOLOGY QUESTIONS AND ANSWERS
1. Restriction enzymes were discovered by
Smith and Nathans
2. Bacteria protect themselves from viruses by fragmenting viral DNA with
Endonuclease
3. Klenow fragment is derived from
DNA Pol-I
4. Southern blotting is
Transfer of DNA fragments from electrophoretic gel to a nitrocellulose sheet
5. ELISA is
Addition of substrate that is converted into a coloured end product
6. The Golden Rice variety is rich in
B-carotene and ferritin
7. The DNA fragments have sticky ends due to
Unpaired bases
8. Plasmids are used as cloning vectors for which of the following reasons?
Self-replication in bacterial cells
9. The human genome project was launched in the year
1990
10. The vaccines prepared through recombinant DNA technology are
Third generation vaccines
11. PCR technique was invented by
Karry Mullis
12. The first transgenic plant to be produced is
Tobacco
1. Restriction enzymes were discovered by
Smith and Nathans
2. Bacteria protect themselves from viruses by fragmenting viral DNA with
Endonuclease
3. Klenow fragment is derived from
DNA Pol-I
4. Southern blotting is
Transfer of DNA fragments from electrophoretic gel to a nitrocellulose sheet
5. ELISA is
Addition of substrate that is converted into a coloured end product
6. The Golden Rice variety is rich in
B-carotene and ferritin
7. The DNA fragments have sticky ends due to
Unpaired bases
8. Plasmids are used as cloning vectors for which of the following reasons?
Self-replication in bacterial cells
9. The human genome project was launched in the year
1990
10. The vaccines prepared through recombinant DNA technology are
Third generation vaccines
11. PCR technique was invented by
Karry Mullis
12. The first transgenic plant to be produced is
Tobacco
