NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXII06: MOLECULAR BASIS OF INHERITANCE
343085
Central dogma was proposed by
1 Beadle and Tatum
2 Temin and Baltimore
3 Crick
4 Rosalind
Explanation:
Francis Crick in 1958, proposed Central Dogma. He described all possible outflow between DNA, RNA and proteins.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343086
If 100 heavy DNA \(15 \mathrm{~N}\) are replicated three times in medium, the result obtained is
1 \(12.5 \%\) intermediate and \(87.5 \%\) light DNA
2 \(25 \%\) intermediate and \(75 \%\) light DNA
3 \(50 \%\) heavy and \(50 \%\) light DNA
4 \(37.5 \%\) half heavy and 62.5 heavy DNA
Explanation:
\(25 \%\) intermediate and \(75 \%\) light DNA
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343087
Antiparallel strands of a DNA molecule means that:
1 The phosphate groups at the start of two, DNA strands are in opposite position (pole)
2 One strand turns clockwise
3 One strand turns anticlockwise
4 The phosphate groups of two DNA strands at their ends share the same position
Explanation:
Anti-parallel DNA strands resting at each end of the DNA helix move in opposite directions, accordingly their name i.e., the 3 prime and 5 prime names come from the notation for the sugar carbon atoms which holds the phosphodiester bonds together. A DNA strand is anti-parallel as it runs parallel to another strand, but turns in the opposite direction. This implies that the head of one strand runs parallel to the tail of the other.
AIPMT - 2007
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343088
Statement A : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Statement B : Both chains of DNA are antiparallel.
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:
The two nitrogen bases of DNA are purines and pyrimidines.DNA double helix is held together by hydrogen bonds occurring between the two strands and involve a base from one strand with a base from the second in complementary pairing. In other words, the nitrogen bases form complementary strands with purine of one and pyrimidine of the other held together by \(\mathrm{H}\) - bonds. The two biopolymers strands are antiparallel, when they run parallel to each other.
Francis Crick in 1958, proposed Central Dogma. He described all possible outflow between DNA, RNA and proteins.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343086
If 100 heavy DNA \(15 \mathrm{~N}\) are replicated three times in medium, the result obtained is
1 \(12.5 \%\) intermediate and \(87.5 \%\) light DNA
2 \(25 \%\) intermediate and \(75 \%\) light DNA
3 \(50 \%\) heavy and \(50 \%\) light DNA
4 \(37.5 \%\) half heavy and 62.5 heavy DNA
Explanation:
\(25 \%\) intermediate and \(75 \%\) light DNA
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343087
Antiparallel strands of a DNA molecule means that:
1 The phosphate groups at the start of two, DNA strands are in opposite position (pole)
2 One strand turns clockwise
3 One strand turns anticlockwise
4 The phosphate groups of two DNA strands at their ends share the same position
Explanation:
Anti-parallel DNA strands resting at each end of the DNA helix move in opposite directions, accordingly their name i.e., the 3 prime and 5 prime names come from the notation for the sugar carbon atoms which holds the phosphodiester bonds together. A DNA strand is anti-parallel as it runs parallel to another strand, but turns in the opposite direction. This implies that the head of one strand runs parallel to the tail of the other.
AIPMT - 2007
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343088
Statement A : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Statement B : Both chains of DNA are antiparallel.
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:
The two nitrogen bases of DNA are purines and pyrimidines.DNA double helix is held together by hydrogen bonds occurring between the two strands and involve a base from one strand with a base from the second in complementary pairing. In other words, the nitrogen bases form complementary strands with purine of one and pyrimidine of the other held together by \(\mathrm{H}\) - bonds. The two biopolymers strands are antiparallel, when they run parallel to each other.
Francis Crick in 1958, proposed Central Dogma. He described all possible outflow between DNA, RNA and proteins.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343086
If 100 heavy DNA \(15 \mathrm{~N}\) are replicated three times in medium, the result obtained is
1 \(12.5 \%\) intermediate and \(87.5 \%\) light DNA
2 \(25 \%\) intermediate and \(75 \%\) light DNA
3 \(50 \%\) heavy and \(50 \%\) light DNA
4 \(37.5 \%\) half heavy and 62.5 heavy DNA
Explanation:
\(25 \%\) intermediate and \(75 \%\) light DNA
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343087
Antiparallel strands of a DNA molecule means that:
1 The phosphate groups at the start of two, DNA strands are in opposite position (pole)
2 One strand turns clockwise
3 One strand turns anticlockwise
4 The phosphate groups of two DNA strands at their ends share the same position
Explanation:
Anti-parallel DNA strands resting at each end of the DNA helix move in opposite directions, accordingly their name i.e., the 3 prime and 5 prime names come from the notation for the sugar carbon atoms which holds the phosphodiester bonds together. A DNA strand is anti-parallel as it runs parallel to another strand, but turns in the opposite direction. This implies that the head of one strand runs parallel to the tail of the other.
AIPMT - 2007
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343088
Statement A : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Statement B : Both chains of DNA are antiparallel.
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:
The two nitrogen bases of DNA are purines and pyrimidines.DNA double helix is held together by hydrogen bonds occurring between the two strands and involve a base from one strand with a base from the second in complementary pairing. In other words, the nitrogen bases form complementary strands with purine of one and pyrimidine of the other held together by \(\mathrm{H}\) - bonds. The two biopolymers strands are antiparallel, when they run parallel to each other.
Francis Crick in 1958, proposed Central Dogma. He described all possible outflow between DNA, RNA and proteins.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343086
If 100 heavy DNA \(15 \mathrm{~N}\) are replicated three times in medium, the result obtained is
1 \(12.5 \%\) intermediate and \(87.5 \%\) light DNA
2 \(25 \%\) intermediate and \(75 \%\) light DNA
3 \(50 \%\) heavy and \(50 \%\) light DNA
4 \(37.5 \%\) half heavy and 62.5 heavy DNA
Explanation:
\(25 \%\) intermediate and \(75 \%\) light DNA
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343087
Antiparallel strands of a DNA molecule means that:
1 The phosphate groups at the start of two, DNA strands are in opposite position (pole)
2 One strand turns clockwise
3 One strand turns anticlockwise
4 The phosphate groups of two DNA strands at their ends share the same position
Explanation:
Anti-parallel DNA strands resting at each end of the DNA helix move in opposite directions, accordingly their name i.e., the 3 prime and 5 prime names come from the notation for the sugar carbon atoms which holds the phosphodiester bonds together. A DNA strand is anti-parallel as it runs parallel to another strand, but turns in the opposite direction. This implies that the head of one strand runs parallel to the tail of the other.
AIPMT - 2007
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343088
Statement A : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Statement B : Both chains of DNA are antiparallel.
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:
The two nitrogen bases of DNA are purines and pyrimidines.DNA double helix is held together by hydrogen bonds occurring between the two strands and involve a base from one strand with a base from the second in complementary pairing. In other words, the nitrogen bases form complementary strands with purine of one and pyrimidine of the other held together by \(\mathrm{H}\) - bonds. The two biopolymers strands are antiparallel, when they run parallel to each other.
