347365
Identify the false statement among the 4 statements given below
1 Retrovirus in animals have the capacity to transform normal cells into cancerous cells
2 Agrobacterium tumefaciens is able to deliver a piece of DNA known as "T-DNA" to transform normal cells into tumor.
3 Direct injection of recombinant DNA into nucleus of animal cell is called Biolistics
4 Cells are bombarded with high velocity micro particles of gold or tungsten coated with DNA in a method called as Biolistics.
Explanation:
Direct injection of recombinant DNA into nucleus of animal cell is called microinjection.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347366
Statement A : DNA is a hydrophilic molecule Statement B : It cannot pass through cell membranes.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
DNA is a hydrophilic molecule, which is negatively charged. Cell membrane or plasma membrane is hydrophobic. It mainly comprises lipids which do not allow hydrophilic molecules such as DNA to cross the cell membrane. Both statements are correct.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347367
Which of the following method can be used for making the bacterial cell competent?
1 Treating with specific concentration of monovalent cation \(\left(\mathrm{K}^{+}\right)\).
2 Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\).
3 Heat shock + ice treatment
4 Both (2) & (3)
Explanation:
(2) Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\). (3) Heat shock + ice treatment method can be used for making the bacterial cell competent.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347368
Select the wrong statement.
1 DNA is a negatively charged molecule
2 The presence of chromogenic substrate gives blue colour colonies, if the plasmid in the bacteria does not have an insert.
3 Since DNA is a hydrophilic molecule it cannot pass through cell membranes.
4 In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA.
Explanation:
In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA is wrong statement.
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BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347365
Identify the false statement among the 4 statements given below
1 Retrovirus in animals have the capacity to transform normal cells into cancerous cells
2 Agrobacterium tumefaciens is able to deliver a piece of DNA known as "T-DNA" to transform normal cells into tumor.
3 Direct injection of recombinant DNA into nucleus of animal cell is called Biolistics
4 Cells are bombarded with high velocity micro particles of gold or tungsten coated with DNA in a method called as Biolistics.
Explanation:
Direct injection of recombinant DNA into nucleus of animal cell is called microinjection.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347366
Statement A : DNA is a hydrophilic molecule Statement B : It cannot pass through cell membranes.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
DNA is a hydrophilic molecule, which is negatively charged. Cell membrane or plasma membrane is hydrophobic. It mainly comprises lipids which do not allow hydrophilic molecules such as DNA to cross the cell membrane. Both statements are correct.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347367
Which of the following method can be used for making the bacterial cell competent?
1 Treating with specific concentration of monovalent cation \(\left(\mathrm{K}^{+}\right)\).
2 Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\).
3 Heat shock + ice treatment
4 Both (2) & (3)
Explanation:
(2) Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\). (3) Heat shock + ice treatment method can be used for making the bacterial cell competent.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347368
Select the wrong statement.
1 DNA is a negatively charged molecule
2 The presence of chromogenic substrate gives blue colour colonies, if the plasmid in the bacteria does not have an insert.
3 Since DNA is a hydrophilic molecule it cannot pass through cell membranes.
4 In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA.
Explanation:
In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA is wrong statement.
347365
Identify the false statement among the 4 statements given below
1 Retrovirus in animals have the capacity to transform normal cells into cancerous cells
2 Agrobacterium tumefaciens is able to deliver a piece of DNA known as "T-DNA" to transform normal cells into tumor.
3 Direct injection of recombinant DNA into nucleus of animal cell is called Biolistics
4 Cells are bombarded with high velocity micro particles of gold or tungsten coated with DNA in a method called as Biolistics.
Explanation:
Direct injection of recombinant DNA into nucleus of animal cell is called microinjection.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347366
Statement A : DNA is a hydrophilic molecule Statement B : It cannot pass through cell membranes.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
DNA is a hydrophilic molecule, which is negatively charged. Cell membrane or plasma membrane is hydrophobic. It mainly comprises lipids which do not allow hydrophilic molecules such as DNA to cross the cell membrane. Both statements are correct.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347367
Which of the following method can be used for making the bacterial cell competent?
1 Treating with specific concentration of monovalent cation \(\left(\mathrm{K}^{+}\right)\).
2 Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\).
3 Heat shock + ice treatment
4 Both (2) & (3)
Explanation:
(2) Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\). (3) Heat shock + ice treatment method can be used for making the bacterial cell competent.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347368
Select the wrong statement.
1 DNA is a negatively charged molecule
2 The presence of chromogenic substrate gives blue colour colonies, if the plasmid in the bacteria does not have an insert.
3 Since DNA is a hydrophilic molecule it cannot pass through cell membranes.
4 In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA.
Explanation:
In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA is wrong statement.
347365
Identify the false statement among the 4 statements given below
1 Retrovirus in animals have the capacity to transform normal cells into cancerous cells
2 Agrobacterium tumefaciens is able to deliver a piece of DNA known as "T-DNA" to transform normal cells into tumor.
3 Direct injection of recombinant DNA into nucleus of animal cell is called Biolistics
4 Cells are bombarded with high velocity micro particles of gold or tungsten coated with DNA in a method called as Biolistics.
Explanation:
Direct injection of recombinant DNA into nucleus of animal cell is called microinjection.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347366
Statement A : DNA is a hydrophilic molecule Statement B : It cannot pass through cell membranes.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
DNA is a hydrophilic molecule, which is negatively charged. Cell membrane or plasma membrane is hydrophobic. It mainly comprises lipids which do not allow hydrophilic molecules such as DNA to cross the cell membrane. Both statements are correct.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347367
Which of the following method can be used for making the bacterial cell competent?
1 Treating with specific concentration of monovalent cation \(\left(\mathrm{K}^{+}\right)\).
2 Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\).
3 Heat shock + ice treatment
4 Both (2) & (3)
Explanation:
(2) Treating with specific concentration of divalent cation \(\left(\mathrm{Ca}^{2+}\right)\). (3) Heat shock + ice treatment method can be used for making the bacterial cell competent.
BIOXII11:BIOTECHNOLOGY PRINCIPLES AND PROCESSES
347368
Select the wrong statement.
1 DNA is a negatively charged molecule
2 The presence of chromogenic substrate gives blue colour colonies, if the plasmid in the bacteria does not have an insert.
3 Since DNA is a hydrophilic molecule it cannot pass through cell membranes.
4 In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA.
Explanation:
In microinjection, cells are bombarded with high velocity microparticles of gold or tungsten coated with DNA is wrong statement.