185473
In three dimensional view the molecule of \(t\) RNA is:
1 L-shaped
2 S-shaped
3 Y-shaped
4 E-shaped
Explanation:
Exp: A In three dimensional view, the molecule of tRNA is an L-shaped molecule. The L-shape is formed by the folding of the secondary structure of the t-RNA, which is a clover leaf-shaped structure. The anticodon loop is located at the bottom of the \(\mathrm{L}\), and the amino acid attachment site is located at the top of the L.
AIPMT-2000
Biomolecules
185474
Anticodon occurs in:
1 t-RNA
2 m-RNA
3 r-RNA
4 DNA
Explanation:
Exp: A Anticodon occurs in t-RNA. A codon or triplet of bases specifies a given amino acid. They are specified by more than one codon. The conversion of codon information into proteins is conducted by transfer RNA. Each transfer RNA (t-RNA) has an anticodon which can base pair with a codon.
AIPMT-2000
Biomolecules
185490
Which of the following radioisotope is not suitable for DNA labelling based studies?
1 \(\mathrm{H}^{3}\)
2 \(\mathrm{P}^{32}\)
3 \(\mathrm{N}^{15}\)
4 \(\mathrm{S}^{35}\)
Explanation:
Exp: D In the given options, all are used as radioisotopes except \(\mathrm{S}^{35} . \mathrm{S}^{35}\) is suitable for protein labeling based studies because proteins contains sulphur whereas \(\mathrm{H}^{3}\) is present in backbone of sugar as well as nitrogen base and is used for DNA labeling. \(\mathrm{P}^{32}\) is also present in entire backbone of DNA strands and nitrogenous bases in DNA are composed of \(\mathrm{N}\), hence \(\mathrm{N}^{15}\) is used as DNA labeling.
J and K CET-2011
Biomolecules
185491
Width of the DNA molecule is
1 \(15 \AA\)
2 \(20 \AA\)
3 \(25 \AA\)
4 \(34 \AA\)
Explanation:
Exp: B The width of DNA molecule is \(20 \AA\) or \(2 \mathrm{~nm}\).
BVP-2009
Biomolecules
185476
Which one of the following is wrong statement?
1 Phosphorus is a constituent of cell membranes certain nucleic acids and all proteins
2 Nitrosomonas and Nitrobacter are chemoautotrophs
3 Anabaena and Nostoc are capable of fixing nitrogen in free-living state also
4 Root nodule forming nitrogen fixers live as aerobes under free-living conditions
Explanation:
Exp: A Phosphorus is a component of cell membrane DNA and RNA but not protein. Phosphorus is present in cell membrane in the form of phospholipid bilayer.
185473
In three dimensional view the molecule of \(t\) RNA is:
1 L-shaped
2 S-shaped
3 Y-shaped
4 E-shaped
Explanation:
Exp: A In three dimensional view, the molecule of tRNA is an L-shaped molecule. The L-shape is formed by the folding of the secondary structure of the t-RNA, which is a clover leaf-shaped structure. The anticodon loop is located at the bottom of the \(\mathrm{L}\), and the amino acid attachment site is located at the top of the L.
AIPMT-2000
Biomolecules
185474
Anticodon occurs in:
1 t-RNA
2 m-RNA
3 r-RNA
4 DNA
Explanation:
Exp: A Anticodon occurs in t-RNA. A codon or triplet of bases specifies a given amino acid. They are specified by more than one codon. The conversion of codon information into proteins is conducted by transfer RNA. Each transfer RNA (t-RNA) has an anticodon which can base pair with a codon.
AIPMT-2000
Biomolecules
185490
Which of the following radioisotope is not suitable for DNA labelling based studies?
1 \(\mathrm{H}^{3}\)
2 \(\mathrm{P}^{32}\)
3 \(\mathrm{N}^{15}\)
4 \(\mathrm{S}^{35}\)
Explanation:
Exp: D In the given options, all are used as radioisotopes except \(\mathrm{S}^{35} . \mathrm{S}^{35}\) is suitable for protein labeling based studies because proteins contains sulphur whereas \(\mathrm{H}^{3}\) is present in backbone of sugar as well as nitrogen base and is used for DNA labeling. \(\mathrm{P}^{32}\) is also present in entire backbone of DNA strands and nitrogenous bases in DNA are composed of \(\mathrm{N}\), hence \(\mathrm{N}^{15}\) is used as DNA labeling.
J and K CET-2011
Biomolecules
185491
Width of the DNA molecule is
1 \(15 \AA\)
2 \(20 \AA\)
3 \(25 \AA\)
4 \(34 \AA\)
Explanation:
Exp: B The width of DNA molecule is \(20 \AA\) or \(2 \mathrm{~nm}\).
BVP-2009
Biomolecules
185476
Which one of the following is wrong statement?
1 Phosphorus is a constituent of cell membranes certain nucleic acids and all proteins
2 Nitrosomonas and Nitrobacter are chemoautotrophs
3 Anabaena and Nostoc are capable of fixing nitrogen in free-living state also
4 Root nodule forming nitrogen fixers live as aerobes under free-living conditions
Explanation:
Exp: A Phosphorus is a component of cell membrane DNA and RNA but not protein. Phosphorus is present in cell membrane in the form of phospholipid bilayer.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Biomolecules
185473
In three dimensional view the molecule of \(t\) RNA is:
1 L-shaped
2 S-shaped
3 Y-shaped
4 E-shaped
Explanation:
Exp: A In three dimensional view, the molecule of tRNA is an L-shaped molecule. The L-shape is formed by the folding of the secondary structure of the t-RNA, which is a clover leaf-shaped structure. The anticodon loop is located at the bottom of the \(\mathrm{L}\), and the amino acid attachment site is located at the top of the L.
AIPMT-2000
Biomolecules
185474
Anticodon occurs in:
1 t-RNA
2 m-RNA
3 r-RNA
4 DNA
Explanation:
Exp: A Anticodon occurs in t-RNA. A codon or triplet of bases specifies a given amino acid. They are specified by more than one codon. The conversion of codon information into proteins is conducted by transfer RNA. Each transfer RNA (t-RNA) has an anticodon which can base pair with a codon.
AIPMT-2000
Biomolecules
185490
Which of the following radioisotope is not suitable for DNA labelling based studies?
1 \(\mathrm{H}^{3}\)
2 \(\mathrm{P}^{32}\)
3 \(\mathrm{N}^{15}\)
4 \(\mathrm{S}^{35}\)
Explanation:
Exp: D In the given options, all are used as radioisotopes except \(\mathrm{S}^{35} . \mathrm{S}^{35}\) is suitable for protein labeling based studies because proteins contains sulphur whereas \(\mathrm{H}^{3}\) is present in backbone of sugar as well as nitrogen base and is used for DNA labeling. \(\mathrm{P}^{32}\) is also present in entire backbone of DNA strands and nitrogenous bases in DNA are composed of \(\mathrm{N}\), hence \(\mathrm{N}^{15}\) is used as DNA labeling.
J and K CET-2011
Biomolecules
185491
Width of the DNA molecule is
1 \(15 \AA\)
2 \(20 \AA\)
3 \(25 \AA\)
4 \(34 \AA\)
Explanation:
Exp: B The width of DNA molecule is \(20 \AA\) or \(2 \mathrm{~nm}\).
BVP-2009
Biomolecules
185476
Which one of the following is wrong statement?
1 Phosphorus is a constituent of cell membranes certain nucleic acids and all proteins
2 Nitrosomonas and Nitrobacter are chemoautotrophs
3 Anabaena and Nostoc are capable of fixing nitrogen in free-living state also
4 Root nodule forming nitrogen fixers live as aerobes under free-living conditions
Explanation:
Exp: A Phosphorus is a component of cell membrane DNA and RNA but not protein. Phosphorus is present in cell membrane in the form of phospholipid bilayer.
185473
In three dimensional view the molecule of \(t\) RNA is:
1 L-shaped
2 S-shaped
3 Y-shaped
4 E-shaped
Explanation:
Exp: A In three dimensional view, the molecule of tRNA is an L-shaped molecule. The L-shape is formed by the folding of the secondary structure of the t-RNA, which is a clover leaf-shaped structure. The anticodon loop is located at the bottom of the \(\mathrm{L}\), and the amino acid attachment site is located at the top of the L.
AIPMT-2000
Biomolecules
185474
Anticodon occurs in:
1 t-RNA
2 m-RNA
3 r-RNA
4 DNA
Explanation:
Exp: A Anticodon occurs in t-RNA. A codon or triplet of bases specifies a given amino acid. They are specified by more than one codon. The conversion of codon information into proteins is conducted by transfer RNA. Each transfer RNA (t-RNA) has an anticodon which can base pair with a codon.
AIPMT-2000
Biomolecules
185490
Which of the following radioisotope is not suitable for DNA labelling based studies?
1 \(\mathrm{H}^{3}\)
2 \(\mathrm{P}^{32}\)
3 \(\mathrm{N}^{15}\)
4 \(\mathrm{S}^{35}\)
Explanation:
Exp: D In the given options, all are used as radioisotopes except \(\mathrm{S}^{35} . \mathrm{S}^{35}\) is suitable for protein labeling based studies because proteins contains sulphur whereas \(\mathrm{H}^{3}\) is present in backbone of sugar as well as nitrogen base and is used for DNA labeling. \(\mathrm{P}^{32}\) is also present in entire backbone of DNA strands and nitrogenous bases in DNA are composed of \(\mathrm{N}\), hence \(\mathrm{N}^{15}\) is used as DNA labeling.
J and K CET-2011
Biomolecules
185491
Width of the DNA molecule is
1 \(15 \AA\)
2 \(20 \AA\)
3 \(25 \AA\)
4 \(34 \AA\)
Explanation:
Exp: B The width of DNA molecule is \(20 \AA\) or \(2 \mathrm{~nm}\).
BVP-2009
Biomolecules
185476
Which one of the following is wrong statement?
1 Phosphorus is a constituent of cell membranes certain nucleic acids and all proteins
2 Nitrosomonas and Nitrobacter are chemoautotrophs
3 Anabaena and Nostoc are capable of fixing nitrogen in free-living state also
4 Root nodule forming nitrogen fixers live as aerobes under free-living conditions
Explanation:
Exp: A Phosphorus is a component of cell membrane DNA and RNA but not protein. Phosphorus is present in cell membrane in the form of phospholipid bilayer.
185473
In three dimensional view the molecule of \(t\) RNA is:
1 L-shaped
2 S-shaped
3 Y-shaped
4 E-shaped
Explanation:
Exp: A In three dimensional view, the molecule of tRNA is an L-shaped molecule. The L-shape is formed by the folding of the secondary structure of the t-RNA, which is a clover leaf-shaped structure. The anticodon loop is located at the bottom of the \(\mathrm{L}\), and the amino acid attachment site is located at the top of the L.
AIPMT-2000
Biomolecules
185474
Anticodon occurs in:
1 t-RNA
2 m-RNA
3 r-RNA
4 DNA
Explanation:
Exp: A Anticodon occurs in t-RNA. A codon or triplet of bases specifies a given amino acid. They are specified by more than one codon. The conversion of codon information into proteins is conducted by transfer RNA. Each transfer RNA (t-RNA) has an anticodon which can base pair with a codon.
AIPMT-2000
Biomolecules
185490
Which of the following radioisotope is not suitable for DNA labelling based studies?
1 \(\mathrm{H}^{3}\)
2 \(\mathrm{P}^{32}\)
3 \(\mathrm{N}^{15}\)
4 \(\mathrm{S}^{35}\)
Explanation:
Exp: D In the given options, all are used as radioisotopes except \(\mathrm{S}^{35} . \mathrm{S}^{35}\) is suitable for protein labeling based studies because proteins contains sulphur whereas \(\mathrm{H}^{3}\) is present in backbone of sugar as well as nitrogen base and is used for DNA labeling. \(\mathrm{P}^{32}\) is also present in entire backbone of DNA strands and nitrogenous bases in DNA are composed of \(\mathrm{N}\), hence \(\mathrm{N}^{15}\) is used as DNA labeling.
J and K CET-2011
Biomolecules
185491
Width of the DNA molecule is
1 \(15 \AA\)
2 \(20 \AA\)
3 \(25 \AA\)
4 \(34 \AA\)
Explanation:
Exp: B The width of DNA molecule is \(20 \AA\) or \(2 \mathrm{~nm}\).
BVP-2009
Biomolecules
185476
Which one of the following is wrong statement?
1 Phosphorus is a constituent of cell membranes certain nucleic acids and all proteins
2 Nitrosomonas and Nitrobacter are chemoautotrophs
3 Anabaena and Nostoc are capable of fixing nitrogen in free-living state also
4 Root nodule forming nitrogen fixers live as aerobes under free-living conditions
Explanation:
Exp: A Phosphorus is a component of cell membrane DNA and RNA but not protein. Phosphorus is present in cell membrane in the form of phospholipid bilayer.