This Page Score: 0/40
Assertion (A):
Polymerase Chain Reaction (PCR) is highly effective for the detection of mutations in genes in suspected cancer patients.
Reason (R):
PCR works by amplifying the nucleic acid sequence of interest, enabling the detection of even very low concentrations of the genetic material, which is critical for early diagnosis.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
Enzyme replacement therapy for ADA deficiency involves the injection of functional ADA into the patient.
Reason (R):
Enzyme replacement therapy is a completely curative approach for ADA deficiency because it provides the necessary functional enzyme.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
The Indian Parliament recently cleared an amendment to the Indian Patents Bill.
Reason (R):
This amendment was cleared to take into consideration issues of patent terms, emergency provisions, and the unauthorized exploitation of bio-resources and traditional knowledge.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
The GEAC (Genetic Engineering Approval Committee) was established by the Indian Government primarily to regulate GM research.
Reason (R):
GEAC is responsible for assessing the safety of introducing genetically modified organisms (GMOs) for public services due to the potential for unpredictable ecological results from genetic modification.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
When using a nucleic acid probe to detect a mutation, the clone containing the mutated gene will not appear on the photographic film after autoradiography.
Reason (R):
The mutation prevents the probe, which is complementary to the normal sequence, from hybridizing, thus failing to retain the radioactive tag for detection.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
Bt toxin is highly effective against a wide range of insect pests, providing broad-spectrum resistance to GM crops.
Reason (R):
The choice of a specific Bt toxin gene (like cryIAc or cryIAb) is crucial because most Bt toxins are highly insect-group specific, targeting specific orders like lepidopterans or coleopterans.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
Insulin for diabetic patients was previously extracted from the pancreas of slaughtered cattle and pigs.
Reason (R):
This animal-sourced insulin often caused immune responses, such as allergies or other types of reactions, in human patients due to the foreign protein nature.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
Micro-propagation allows the rapid production of thousands of plants that are referred to as somaclones.
Reason (R):
Somaclones are plants that are genetically identical to the original parent plant, having been asexually propagated from a small explant using tissue culture methods.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
Transgenic animals are generally engineered to be less sensitive to toxic substances than non-transgenic animals for safety testing.
Reason (R):
This modified sensitivity allows researchers to test the toxicity of drugs and chemicals effectively over a shorter period.
[Biotechnology-and-its-Applications] [class-xii ]
Assertion (A):
The milk produced by the transgenic cow Rosie was nutritionally balanced for human babies because it contained human alpha-lactalbumin.
Reason (R):
Rosie produced milk containing 2.4 grams per litre of human protein, making it a more superior biological product than natural cow-milk.
[Biotechnology-and-its-Applications] [class-xii ]
This Page Score: 0/40