Free MCQs & Online Quiz Practice for Exams

Q: Cell suspension culture of Cinchona ledgeriana produces

A) Quinine

B) Digitoxin

C) Roludrin

D) Antitoxin

Q: Dideoxyribonucleoside triphosphates are used to terminate DNA synthesis at different sites. Which method involves this procedure?

A) Maxam-Gilbert's method

B) Sanger's method

C) Kary Mullis's method

D) Gottlieb's method

Q: The gene of choice can be synthesized in the laboratory from mRNA using reverse transcriptase. This DNA molecule is called

A) Complementary DNA

B) Replicative DNA

C) Synthetic DNA

D) ssDNA

Q: The gene of interest is joined with the plasmid with the help of

A) DNA ligase

B) DNA polymerase

C) Restriction endonuclease

D) Reverse transcriptase

Q: The enzyme DNA polymerase can work in which direction?

A) 3′→5′

B) 5′→3′

C) Both directions

D) 5′→5′

Q: In recombinant DNA technology a plasmid vector is cleaved by

A) Modified DNA ligase

B) A heated alkaline solution

C) The same enzyme that cleaves donor DNA

D) A different enzyme other than that cleaves donor DNA

Q: The complete set of chromosomal and extrachromosomal genes of an organism is called

A) Genome

B) Gene pool

C) Gene bank

D) Gene library

Q: Which is an ideal technology for the management of plant diseases?

A) Integrated disease management

B) Biological control

C) Chemical control

D) None of the above

Q: Identify the process in which weakened pathogen is introduced into the body

A) Attenuation

B) Vaccination

C) Biological control

D) Radiotherapy

Q: Who developed the first vaccine in the history of medicine?

A) Louis Pasteur

B) Joseph Miester

C) Carl Landsteiner

D) Edward Jenner

Q: Which of the following statement is INCORRECT about the vaccine development process?

A) It consists of a live attenuated or killed germ cells

B) Aluminum can be used as an adjuvant in a vaccine

C) Animal trials are not necessary for every vaccine before human trial

D) Normal vaccine production can take 10–15 years

Q: Which of the following is NOT an example of a live attenuated vaccine?

A) Diphtheria vaccine

B) Measles vaccine

C) BCG vaccine

D) Smallpox vaccine

Q: The first scientifically approved vaccine was

A) Oral polio vaccine

B) Measles vaccine

C) MMR vaccine (measles,mumps,rubella)

D) Smallpox vaccine

Q: Which of the following is NOT included in integrated disease management?

A) Awareness through media

B) Vaccination and medication

C) Physical control

D) Projecting false perception about disease

Q: BCG vaccine is a type of

A) Live attenuated vaccine

B) Killed vaccine

C) Subunit vaccine

D) Conjugated vaccine

Q: Study of proper utilization of economically important domestic animals is called

A) Animal Husbandry

B) Wildlife Management

C) Livestock Management

D) Hybrid breeding

Q: Holstein Friesian breed among exotic cattle gives on average milk production of

A) 10 liters per day

B) 15 liters per day

C) 20 liters per day

D) 25 liters per day

Q: Electric potential of earth is taken to be zero because the earth is good_____________

A) Semiconductor

B) Conductor

C) Insulator

D) Dielectric

Q: Choose the synonym of "Big"

A) Tiny

B) Large

C) Slow

D) Short

Q: In a 100 meter long conductor carrying current of 2 A at right angle to a magnetic field of 0.5 Wb/m², the force experienced by the conductor is (E.T 2009)

A) 1.2 N

B) 3 dynes

C) 10⁷ dynes

D) 10⁵ dynes