A
a. Smith and Nathans
DNA fragments have sticky ends due to
a. Endonuclease
b. unpaired bases
c. calcium ions
d. free methylation
b. unpaired bases
The first clinical application of gene therapy over a 4-year-old girl was for
a. Adenosine deaminase deficiency
b.adenosine deficiency
c. growth deficiency
d. adenine deficiency
a. adenosine deaminase deficiency
The production of complete animals from the somatic cells of an animal is called ___
a. gene cloning
b. animal cloning
c. cell cloning
d. all of these
b. animal cloning
Bacteria protect themselves from viruses by fragmenting viral DNA with
a. ligase
b. endonuclease
c. exonuclease
d. gyrase
b. endonuclease
The vaccines prepared through recombinant DNA technology are
a. third-generation vaccines
b. frist-generation vaccines
c. second-generation vaccines
d. none
a. third-generation vaccines
Which bacterium is used in the production of insulin by genetic engineering?
a. Saccharomyces
b. Rhizobium
c. Escherichiac. Escherichia
The virus commonly used to infect cell cultures for the production of interferon is_____
a. corona virus
b. sendai virus
c. polio virus
d. small pox virus
b. Sendai virus
a. DNA Ligase
b. DNA Pol-I
c. DNA Pol-II
d. Reverse Transcriptase
b. DNA Pol-I
PCR technique was invented by
a. Karry Mullis
b. Boyer
c. Sanger
d. Cohn
a. Karry Mullis
A gene whose expression helps to identify transformed cells is known as ____
a. Plasmid
b. selectable marker
c. structured gene
d. vector
b. selectable marker
Interferons are
a. anti-bacterial proteins
b. anti-viral proteins
c. bacteriostatic proteins
d. all of these
b. anti-viral proteins
ELISA is
a. using radiolabelled second antibody
b. usage of RBCs
c. USing complement-mediated cell lysis
d. addition of substrate that is converted into a coloured end product
d. addition of substrate that is converted into coloured end product
The first transgenic plant to be produced is
a. Brinjal
b. Tobacco
c. Rice
d. Cotton
B. Tobacco
DNA fragments separated on an agarose gel can be visualized after staining with____
a. ethidium bromide
b. bromophenol blue
c. acetocarmine
d. aniline blue
a. ethidium bromide
The first vaccine developed from animal cell culture was
a. hepatitis B vaccine
b. influenza vaccine
c. small pox vaccine
d. polio vaccine
d. polio vaccine
The Golden Rice variety is rich in
a. Vitamin C
b. B-carotene and ferritin
c. Biotin
d. Lysine
b. B-carotene and ferritin
RNA interference helps in
a. Cell proliferation
b. Micropropagation
c. Cell defense
d. Cell differentiation
c. cell defense
The first successfully cloned animal was
a. monkey
b. gibbon
c. sheep
d. rabbit
c. sheep
Agarose extracted from sea weeds finds use in ______
a. spectrophotometry
b. gel electrophoresis
c. PCR
d. tissue culture
b. gel electrophoresis