A genetically engineered micro-organism used successfully in bioremediation of oil spills is a species of

Pseudomonas
Trichoderma
Xanthomonas
Bacillus

The prerequisites for bio-technological production of antibiotics is

to search an antibiotic producing microorganism
to isolate the antibiotic gene
to join antibiotic gene with E. coliplasmid
All of the above

Prenatal screening in humans, AIDS virus testing in humans, and genetic engineering for protection against insect attack in plants all

are types of gene therapy.
are examples of the application of r-DNA technology.
require use of the same restriction enzyme.
are carried out using gene guns.

Solution

These are all good examples of the end products of various r-DNA technologies.

Cry protein is obtained from

Bacillus thuringiensis
Bacillus subtilis
Clostridium welchi
E. coli

Genetically engineered bovine growth hormone (BGH), which is highly effective for improving overall growth and milk production in cattle, remains a hotly debated issue because

BGH is clearly hazardous to human health.
BGH is an environmental hazard.
BGH could drive traditional family farmers out of business.
scientists remain unconvinced that BGH really works.

Solution

The use of BGH does not appear to have serious health or environmental drawbacks, but it could offer such a competitive edge to corporate farming operations that smaller, more traditional family farms might be forced out of business. This scenario is a good example of how genetic engineering can have unintended social consequences.

DNA vaccines are

mixture of hormones
recombinant vaccines
synthetic vaccines
pure DNA or RNA

Solution

DNA vaccines are used as injection of pure DNA or RNA into skeleton muscles leading to expression of DNA in the muscle cell.

Toxic component of Bacillus thuringiensis is protein. Commercial preparation of Bacillus thuringiensis consists of mixture of spores, cry protein and inert carrier. Bt stands for Bacillus thuringiensis for in popular crop of Bt cotton. Tricoderma is used in bio-control of fungal pathogen because it has capacity to secrete the enzyme.

DNAase
RNAase
Chitinase
Cry protein

It is sometimes necessary to genetically engineered mammalian cells to produce proteins because they

can produce larger quantities of protein than bacteria.
can read eukaryotic genes and bacteria cannot.
can add sugars to make glycoproteins and bacteria can not.
are easier to grow than bacteria.

Solution

Only mammalian cells can correctly attach these sugars to proteins.

GEAC stands for

Genome Engineering Action Committee
Ground Environment Action Committee
Genetic Engineering Approval Committee
Genetic and Environment Approval committee

Scientists wished to create an organism capable of breaking down several kinds of toxic wastes, so they combined the genes of several bacteria to create a single super bacterium.They probably did not need to use which of the following in creating the super bacterium?

Nucleic acid probes
F factors
Plasmids
Restriction enzymes

Solution

F factors carry genes required for conjugation.

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