343102
Genetic material of bacteriophage \(\phi \times {\rm{174}}\) and it has ____ nucleotides
1 ss DNA, 5386
2 ss RNA, 5386
3 ds DNA,5368
4 ss DNA, 5368
Explanation:
bacteriophage known as \(\varphi \times 174\) has 5386 nucleotides
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343103
In sea urchin DNA, which is double stranded, \(17 \%\) of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are :
1 G 8.5 %, A 50 %, T 24.5 %
2 G 34 %, A 24.5 %, T 24.5 %
3 G 17 %, A 16.5 %, T 32.5 %
4 G 17 %, A 33 %, T 33 %
Explanation:
Rule by Chargaff: The rule states that there is a percentage basepair equality for a double-stranded DNA molecule worldwide: percent A is equal to percent T and percent G is equal to percent C. In the DNA double helix model, the robust validation of the law constitutes the basis of Watson-Crick pairs. For each of the two DNA strands, the second rule holds that both percent A is equal to percent T and percent G is equal to percent C. In a single DNA strand, this describes only a global function of the base composition. Both cellular DNAs, irrespective of the organisms, have a number of adenosine residues equal to the number of thymidine residues according to Chargaff's law, which means that A is equal to T; and the number of guanosine residues is equal to the number of cytidine residues; G is equal to C. There is 17 percent cytosine in the given question, meaning the percentage of guanine is also 17 percent. Therefore, \((\mathrm{A}+\mathrm{T})=(\mathrm{G}+\mathrm{C}),(\mathrm{A}+\mathrm{T})(\mathrm{G}+\mathrm{C})=1\) We know that, \((\mathrm{A}+\mathrm{T}+\mathrm{G}+\mathrm{C})=100\) percent \({\rm{A + T + 17 + 17 = 100, A + T = 100 - 34A + T = 66}}\) As \({\rm{A = T, 2A = 66,}}\;{\rm{A = 33}}\), \({\rm{A = 33}}\) And \(\mathrm{T}=33\) Thus, if cytosine is \(17 \%, \mathrm{G}\) is \(17 \%, \mathrm{~A}\) is \(33 \%\), and \(\mathrm{T}\) is \(33 \%\) So, the correct answer is, 'G-17 %, A-33 %, T-33 %'.
NEET - 2016
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343104
Which nitrogenous base is absent in RNA ?
1 Thymine
2 Adenine
3 Cytosine
4 Guanine
Explanation:
The complement of adenine is uracil instead of thymine, in RNA.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343105
A nucleoside consists of
1 Nitrogen Base
2 Sugar
3 Phosphate group
4 Both 1 & 2
Explanation:
A nucleoside contains a nitrogenous base covalently attached to a sugar but without the phosphate group.
NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXII06: MOLECULAR BASIS OF INHERITANCE
343102
Genetic material of bacteriophage \(\phi \times {\rm{174}}\) and it has ____ nucleotides
1 ss DNA, 5386
2 ss RNA, 5386
3 ds DNA,5368
4 ss DNA, 5368
Explanation:
bacteriophage known as \(\varphi \times 174\) has 5386 nucleotides
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343103
In sea urchin DNA, which is double stranded, \(17 \%\) of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are :
1 G 8.5 %, A 50 %, T 24.5 %
2 G 34 %, A 24.5 %, T 24.5 %
3 G 17 %, A 16.5 %, T 32.5 %
4 G 17 %, A 33 %, T 33 %
Explanation:
Rule by Chargaff: The rule states that there is a percentage basepair equality for a double-stranded DNA molecule worldwide: percent A is equal to percent T and percent G is equal to percent C. In the DNA double helix model, the robust validation of the law constitutes the basis of Watson-Crick pairs. For each of the two DNA strands, the second rule holds that both percent A is equal to percent T and percent G is equal to percent C. In a single DNA strand, this describes only a global function of the base composition. Both cellular DNAs, irrespective of the organisms, have a number of adenosine residues equal to the number of thymidine residues according to Chargaff's law, which means that A is equal to T; and the number of guanosine residues is equal to the number of cytidine residues; G is equal to C. There is 17 percent cytosine in the given question, meaning the percentage of guanine is also 17 percent. Therefore, \((\mathrm{A}+\mathrm{T})=(\mathrm{G}+\mathrm{C}),(\mathrm{A}+\mathrm{T})(\mathrm{G}+\mathrm{C})=1\) We know that, \((\mathrm{A}+\mathrm{T}+\mathrm{G}+\mathrm{C})=100\) percent \({\rm{A + T + 17 + 17 = 100, A + T = 100 - 34A + T = 66}}\) As \({\rm{A = T, 2A = 66,}}\;{\rm{A = 33}}\), \({\rm{A = 33}}\) And \(\mathrm{T}=33\) Thus, if cytosine is \(17 \%, \mathrm{G}\) is \(17 \%, \mathrm{~A}\) is \(33 \%\), and \(\mathrm{T}\) is \(33 \%\) So, the correct answer is, 'G-17 %, A-33 %, T-33 %'.
NEET - 2016
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343104
Which nitrogenous base is absent in RNA ?
1 Thymine
2 Adenine
3 Cytosine
4 Guanine
Explanation:
The complement of adenine is uracil instead of thymine, in RNA.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343105
A nucleoside consists of
1 Nitrogen Base
2 Sugar
3 Phosphate group
4 Both 1 & 2
Explanation:
A nucleoside contains a nitrogenous base covalently attached to a sugar but without the phosphate group.
343102
Genetic material of bacteriophage \(\phi \times {\rm{174}}\) and it has ____ nucleotides
1 ss DNA, 5386
2 ss RNA, 5386
3 ds DNA,5368
4 ss DNA, 5368
Explanation:
bacteriophage known as \(\varphi \times 174\) has 5386 nucleotides
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343103
In sea urchin DNA, which is double stranded, \(17 \%\) of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are :
1 G 8.5 %, A 50 %, T 24.5 %
2 G 34 %, A 24.5 %, T 24.5 %
3 G 17 %, A 16.5 %, T 32.5 %
4 G 17 %, A 33 %, T 33 %
Explanation:
Rule by Chargaff: The rule states that there is a percentage basepair equality for a double-stranded DNA molecule worldwide: percent A is equal to percent T and percent G is equal to percent C. In the DNA double helix model, the robust validation of the law constitutes the basis of Watson-Crick pairs. For each of the two DNA strands, the second rule holds that both percent A is equal to percent T and percent G is equal to percent C. In a single DNA strand, this describes only a global function of the base composition. Both cellular DNAs, irrespective of the organisms, have a number of adenosine residues equal to the number of thymidine residues according to Chargaff's law, which means that A is equal to T; and the number of guanosine residues is equal to the number of cytidine residues; G is equal to C. There is 17 percent cytosine in the given question, meaning the percentage of guanine is also 17 percent. Therefore, \((\mathrm{A}+\mathrm{T})=(\mathrm{G}+\mathrm{C}),(\mathrm{A}+\mathrm{T})(\mathrm{G}+\mathrm{C})=1\) We know that, \((\mathrm{A}+\mathrm{T}+\mathrm{G}+\mathrm{C})=100\) percent \({\rm{A + T + 17 + 17 = 100, A + T = 100 - 34A + T = 66}}\) As \({\rm{A = T, 2A = 66,}}\;{\rm{A = 33}}\), \({\rm{A = 33}}\) And \(\mathrm{T}=33\) Thus, if cytosine is \(17 \%, \mathrm{G}\) is \(17 \%, \mathrm{~A}\) is \(33 \%\), and \(\mathrm{T}\) is \(33 \%\) So, the correct answer is, 'G-17 %, A-33 %, T-33 %'.
NEET - 2016
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343104
Which nitrogenous base is absent in RNA ?
1 Thymine
2 Adenine
3 Cytosine
4 Guanine
Explanation:
The complement of adenine is uracil instead of thymine, in RNA.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343105
A nucleoside consists of
1 Nitrogen Base
2 Sugar
3 Phosphate group
4 Both 1 & 2
Explanation:
A nucleoside contains a nitrogenous base covalently attached to a sugar but without the phosphate group.
343102
Genetic material of bacteriophage \(\phi \times {\rm{174}}\) and it has ____ nucleotides
1 ss DNA, 5386
2 ss RNA, 5386
3 ds DNA,5368
4 ss DNA, 5368
Explanation:
bacteriophage known as \(\varphi \times 174\) has 5386 nucleotides
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343103
In sea urchin DNA, which is double stranded, \(17 \%\) of the bases were shown to be cytosine. The percentages of the other three bases expected to be present in this DNA are :
1 G 8.5 %, A 50 %, T 24.5 %
2 G 34 %, A 24.5 %, T 24.5 %
3 G 17 %, A 16.5 %, T 32.5 %
4 G 17 %, A 33 %, T 33 %
Explanation:
Rule by Chargaff: The rule states that there is a percentage basepair equality for a double-stranded DNA molecule worldwide: percent A is equal to percent T and percent G is equal to percent C. In the DNA double helix model, the robust validation of the law constitutes the basis of Watson-Crick pairs. For each of the two DNA strands, the second rule holds that both percent A is equal to percent T and percent G is equal to percent C. In a single DNA strand, this describes only a global function of the base composition. Both cellular DNAs, irrespective of the organisms, have a number of adenosine residues equal to the number of thymidine residues according to Chargaff's law, which means that A is equal to T; and the number of guanosine residues is equal to the number of cytidine residues; G is equal to C. There is 17 percent cytosine in the given question, meaning the percentage of guanine is also 17 percent. Therefore, \((\mathrm{A}+\mathrm{T})=(\mathrm{G}+\mathrm{C}),(\mathrm{A}+\mathrm{T})(\mathrm{G}+\mathrm{C})=1\) We know that, \((\mathrm{A}+\mathrm{T}+\mathrm{G}+\mathrm{C})=100\) percent \({\rm{A + T + 17 + 17 = 100, A + T = 100 - 34A + T = 66}}\) As \({\rm{A = T, 2A = 66,}}\;{\rm{A = 33}}\), \({\rm{A = 33}}\) And \(\mathrm{T}=33\) Thus, if cytosine is \(17 \%, \mathrm{G}\) is \(17 \%, \mathrm{~A}\) is \(33 \%\), and \(\mathrm{T}\) is \(33 \%\) So, the correct answer is, 'G-17 %, A-33 %, T-33 %'.
NEET - 2016
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343104
Which nitrogenous base is absent in RNA ?
1 Thymine
2 Adenine
3 Cytosine
4 Guanine
Explanation:
The complement of adenine is uracil instead of thymine, in RNA.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343105
A nucleoside consists of
1 Nitrogen Base
2 Sugar
3 Phosphate group
4 Both 1 & 2
Explanation:
A nucleoside contains a nitrogenous base covalently attached to a sugar but without the phosphate group.