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NEET UG BIOLOGY MCQ: BIOTECHNOLOGY-PRINCIPLES AND PROCESSES
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Which of the following statement is not true?
I. DNA being a hydrophilic molecule cannot pass through cell membranes
II. delivers a piece of DNA known as ‘Z-DNA’ in the Ti-plasmid which transforms normal plant cells into tumour cells to produce chemical against pathogens
III. Retrovirus, adenovirus, papillomavirus are also now used as cloning vectors in animal because of their ability to transform normal cells into cancerous cell.
IV. In genetic engineering, DNA from different sources are cut with the same restriction enzymes so that both DNA fragments have same kind of sticky ends
Choose the correct option
I. DNA being a hydrophilic molecule cannot pass through cell membranes
II. delivers a piece of DNA known as ‘Z-DNA’ in the Ti-plasmid which transforms normal plant cells into tumour cells to produce chemical against pathogens
III. Retrovirus, adenovirus, papillomavirus are also now used as cloning vectors in animal because of their ability to transform normal cells into cancerous cell.
IV. In genetic engineering, DNA from different sources are cut with the same restriction enzymes so that both DNA fragments have same kind of sticky ends
Choose the correct option
View answer and explanation
Correct option: B
Only II
Option B is correct. delivers T-DNA, not Z-DNA, in the Ti-plasmid.
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Assertion: Special methods are used for
transformation i.e., incorporation of recombinant
DNA into molecule.
Reason: DNA is a hydrophilic molecule. Proteins are removed by treatment with Enzyme isolated from Thermus aquaticus bacterium is used in plasmids used in genetic engineering is obtained from Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain? Which one of the following is used as vector for cloning genes into higher organisms?
transformation i.e., incorporation of recombinant
DNA into molecule.
Reason: DNA is a hydrophilic molecule. Proteins are removed by treatment with Enzyme isolated from Thermus aquaticus bacterium is used in plasmids used in genetic engineering is obtained from Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain? Which one of the following is used as vector for cloning genes into higher organisms?