Q.4 Antibiotic resistance marker that CANNOT be used in a cloning vector in Gram negative bacteria is (A) Streptomycin (B) Ampicillin (C) Vancomycin (D) Kanamycin Cloning vectors rely on antibiotic […]
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GATE Biotechnology 2010 Previous Year Papers with Solutions
Naturally Competent Bacteria
Q.3 The bacteria known to be naturally competent for transformation of DNA is (A) Escherichia coli (B) Bacillus subtilis (C) Mycobacterium tuberculosis (D) Yersinia pestis Bacterial competence enables natural DNA […]
GATE Biotechnology 2010 Previous Year Papers with Solutions
Ames Test
Q.2 Ames test is used to determine (A) The mutagenicity of a chemical (B) Carcinogenicity of a chemical (C) Both mutagenicity and carcinogenicity of a chemical (D) Toxicity of a […]
GATE Biotechnology 2010 Previous Year Papers with Solutions
Hybridoma Technology
Q.1 Hybridoma technology is used to produce (A) Monoclonal antibodies (B) Polyclonal antibodies (C) Both monoclonal and polyclonal antibodies (D) B cells Here’s a SEO-optimized article on hybridoma technology, tailored […]
GATE Life Science 2014 Previous Year Papers with Solutions
Cholesterol-Rich Membrane Regions
Q.105 Regions of higher abundance of cholesterol molecules on the plasma membrane will (A) be more fluid (B) result in clogged arteries as it can detach from the plasma membrane […]
GATE Life Science 2014 Previous Year Papers with Solutions
Reviving the Woolly Mammoth
Q.104 Theoretically, it is possible to resurrect the extinct woolly mammoth by which ONE of the following methods? (A) Transferring cell nuclei from the frozen tissue into enucleated unfertilized eggs […]
GATE Life Science 2014 Previous Year Papers with Solutions
DNA Restriction Fragment Separation on Agarose Gel
Q.103 A DNA fragment shown below has restriction sites I and II, which create fragments X, Y, and Z. Which ONE of the following agarose gel electrophoresis patterns represents the […]
GATE Life Science 2014 Previous Year Papers with Solutions
TCA Cycle Products
Q.102 Which ONE of the following combinations of products will result, when 3 molecules of acetyl CoA is fed into TCA cycle? (A) 1 ATP, 2 CO2, 3 NADH, and […]
GATE Life Science 2014 Previous Year Papers with Solutions
Which Dialysis Bags Are Hypertonic?
Q.101 Five dialysis bags (DB1-DB5), impermeable to sucrose, were filled with various concentrations of sucrose. The bags were placed in separate beakers containing 0.6 M sucrose solution. Every 10 minutes, […]
GATE Life Science 2014 Previous Year Papers with Solutions
Parasitic Worms and Allergies
Q.100 One individual has a parasitic worm infection and another is responding to an allergen such as pollen. Which ONE of the following features is common to both of them? […]
