BIOTECHNOLOGY AND ITS APPLICATIONS
2013 MARCH
1. A novel
strategy to prevent nematode manifestation is based on ‘RNA interference’.
a. Explain RNA
interference.
b. Can you suggest
how it can be used for producing nematode resistant plant? (2)
2. Sophic was born with a genetic disorder – ADA
deficiency.
a. What is ADA
deficiency?
b. Can you suggest
methods to treat this ADA deficiency? (2)
2013 SAY
1. Jaya read in a
Biotechnology book that alien DNA can be introduced into host cell by
microinjection and biolistics. Explain these methods. (2)
2. Genetic
engineering includes creation of recombinant DNA with the help of restriction
enzymes.
a. Explain
recombinant DNA technology.
b. What are
restriction enzymes? Name a restriction enzyme. (2)
2014 MARCH
1. Bt Cotton is
regarded as an important achievement of genetic engineering. What does Bt
stands for? (1)
2. Animals that
had their DNA manipulated to possess and express foreign DNA are called
transgenic animals. Write briefly any three benefits of such transgenic animals
to human beings. (3)
2014 SAY
1. Pharmaceutical
companies are producing large quantities of human insulin by genetic
engineering. Briefly explain the process. (2)
2.
In the 2012 Children’s Science Congress, one of the
speaker summarized like this- If we are not vigilant, countries or individuals
encash our resources as their right. Explain this with an example. (2)
2015 MARCH
1.
Genetically Modified Organism (GMO) is always a
debatable topic among scientists, academicians and public. State any four
usefulness of GMOs. (Scores : ½ X 4 =
2)
2.
Biotechnology in agriculture will lead to pest
resistant plants, which could decrease the amount of pesticides used. For
example Bt cotton. Expand the letter ‘B‘ and ‘t’. (Score:
½ + ½ = 1)
3.
In 1997, an American company got patent rights on
Basmati rice through the U.S. Patent and Trademark Office. Variety of Basmati
had actually been derived from Indian farmer's varieties. If so, what is
Biopiracy? (Score: 1)
2015 SAY
1.
A multinational company successfully cloned a gene
of interest and also optimized the conditions to induce the expression of
target protein.
a.
Name the apparatus for large scale production of
such proteins. (Score:
½)
b.
Briefly explain the apparatus. (Score: 1½)
2.
A farmer approached an Agriculture officer to tell
his grievance i.e., reduction in tobacco yield due to root damage by nematodes.
a.
What is your suggestion to prevent this infestation? (Score:
½)
b.
Briefly explain the process. (Score: 1½)
3.
One of the speakers in the National Children’s
Science Congress delivered a talk about Transgenic animals. Explore any 2
benefits of transgenic animals.(Scores: 2)