Directly related questions
- 22N.1A.SL.TZ0.6: What is the arrangement of subunits in a DNA nucleotide? A. sugar – base – phosphate B. sugar –...
- 22N.1A.SL.TZ0.6: What is the arrangement of subunits in a DNA nucleotide? A. sugar – base – phosphate B. sugar –...
- 22N.1A.HL.TZ0.7: What is the arrangement of the components of nucleotides in a single DNA strand?
- 22N.1A.HL.TZ0.7: What is the arrangement of the components of nucleotides in a single DNA strand?
- 22N.2.SL.TZ0.4a: Identify the protein labelled in the diagram.
- 22N.2.SL.TZ0.4a: Identify the protein labelled in the diagram.
- 22N.2.SL.TZ0.a: Identify the protein labelled in the diagram.
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- SPM.2.HL.TZ0.10b: Explain how the function of DNA is linked to its molecular structure.
- SPM.2.HL.TZ0.10b: Explain how the function of DNA is linked to its molecular structure.
- SPM.2.HL.TZ0.10b: Explain how the function of DNA is linked to its molecular structure.
- SPM.2.HL.TZ0.b: Explain how the function of DNA is linked to its molecular structure.
Sub sections and their related questions
A1.2.1. DNA as the genetic material of all living organisms
NoneA1.2.2. Components of a nucleotide
- 21M.1A.SL.TZ1.9: The hydrolysis of a pure sample of an organic molecule produces a pentose sugar, thymine, guanine...
- 21M.1A.SL.TZ1.9: The hydrolysis of a pure sample of an organic molecule produces a pentose sugar, thymine, guanine...
A1.2.3. Sugar–phosphate bonding and the sugar–phosphate “backbone” of DNA and RNA
- 21N.1A.SL.TZ0.10: What is the correct arrangement for the components of one strand in a DNA molecule?
-
21N.2.SL.TZ0.6a:
Draw labelled diagrams to show the structure of RNA nucleotides and how they are linked together to form a molecule of RNA.
- 22M.1A.SL.TZ1.9: A molecule of DNA is found to contain 200 guanine bases, representing 25 % of the total number of...
- 21M.1A.SL.TZ2.9: Which feature is common to both mRNA and DNA? A. Covalent bonds between adjacent nucleotides B....
- 23M.1A.SL.TZ2.10: What is bonded to phosphates in a strand of RNA? A. Only carbohydrates B. Adenine, guanine,...
- 21N.1A.SL.TZ0.10: What is the correct arrangement for the components of one strand in a DNA molecule?
-
21N.2.SL.TZ0.6a:
Draw labelled diagrams to show the structure of RNA nucleotides and how they are linked together to form a molecule of RNA.
-
21N.2.SL.TZ0.a:
Draw labelled diagrams to show the structure of RNA nucleotides and how they are linked together to form a molecule of RNA.
- 22M.1A.SL.TZ1.9: A molecule of DNA is found to contain 200 guanine bases, representing 25 % of the total number of...
- 21M.1A.SL.TZ2.9: Which feature is common to both mRNA and DNA? A. Covalent bonds between adjacent nucleotides B....
- 23M.1A.SL.TZ2.10: What is bonded to phosphates in a strand of RNA? A. Only carbohydrates B. Adenine, guanine,...
A1.2.4. Bases in each nucleic acid that form the basis of a code
- 19M.2.SL.TZ2.2b: Determine, with a reason, the nucleotide base that was marked with...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
- 19M.2.SL.TZ2.b: Determine, with a reason, the nucleotide base that was marked with...
- SPM.1A.HL.TZ0.2: The diagram shows the elements present in two organic molecules, W and X.Which molecules could W...
A1.2.5. RNA as a polymer formed by condensation of nucleotide monomers
-
22M.2.SL.TZ1.8a:
Draw a labelled diagram to show the structure of a single nucleotide of RNA.
-
22M.2.SL.TZ1.7a:
Draw a labelled diagram to show the structure of a single nucleotide of RNA.
-
21N.2.SL.TZ0.6a:
Draw labelled diagrams to show the structure of RNA nucleotides and how they are linked together to form a molecule of RNA.
-
22M.2.SL.TZ1.8a:
Draw a labelled diagram to show the structure of a single nucleotide of RNA.
-
22M.2.SL.TZ1.a:
Draw a labelled diagram to show the structure of a single nucleotide of RNA.
-
22M.2.SL.TZ1.7a:
Draw a labelled diagram to show the structure of a single nucleotide of RNA.
-
22M.2.SL.TZ1.a:
Draw a labelled diagram to show the structure of a single nucleotide of RNA.
-
21N.2.SL.TZ0.6a:
Draw labelled diagrams to show the structure of RNA nucleotides and how they are linked together to form a molecule of RNA.
-
21N.2.SL.TZ0.a:
Draw labelled diagrams to show the structure of RNA nucleotides and how they are linked together to form a molecule of RNA.
A1.2.6. DNA as a double helix made of two antiparallel strands of nucleotides with two strands linked by hydrogen bonding between complementary base pairs
-
22M.2.SL.TZ2.5a.ii:
Explain how the two strands of the DNA double helix are held together.
-
21M.2.SL.TZ2.7a:
Describe the structure of the DNA molecule.
-
20N.2.SL.TZ0.4a:
Sketch the complementary strand to complete the section of a DNA diagram.
-
22M.1A.SL.TZ1.6:
What are linked by hydrogen bonds?
A. Hydrogen and oxygen within a water molecule
B. Phosphate and sugar within a DNA molecule
C. Base and sugar between DNA nucleotides
D. Hydrogen and oxygen in different water molecules
- 19N.2.SL.TZ0.6a: Draw the structure of a section of DNA showing all possible bases.
- 22N.1A.SL.TZ0.6: What is the arrangement of subunits in a DNA nucleotide? A. sugar – base – phosphate B. sugar –...
- 22N.1A.HL.TZ0.7: What is the arrangement of the components of nucleotides in a single DNA strand?
- SPM.2.HL.TZ0.10b: Explain how the function of DNA is linked to its molecular structure.
-
23M.1A.SL.TZ1.25:
The image of the X-ray diffraction of calf thymus DNA was obtained by R. Franklin and R. Gosling in 1953.
[Source: Franklin, R.E. and Gosling, R.G., 1953. [image online]
Available at: https://scripts.iucr.org/cgi-bin/paper?a00979.
[Accessed 8 March 2022].]What does this image show about the structure of DNA?
A. It is associated with histones.
B. It has a helical shape.
C. It contains deoxyribose.
D. It contains four nitrogenous bases.
- SPM.2.HL.TZ0.10b: Explain how the function of DNA is linked to its molecular structure.
-
22M.2.SL.TZ2.5a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.5a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.5a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.5a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.5a.ii:
Explain how the two strands of the DNA double helix are held together.
-
22M.2.SL.TZ2.a.ii:
Explain how the two strands of the DNA double helix are held together.
-
21M.2.SL.TZ2.7a:
Describe the structure of the DNA molecule.
-
21M.2.SL.TZ2.a:
Describe the structure of the DNA molecule.
-
20N.2.SL.TZ0.4a:
Sketch the complementary strand to complete the section of a DNA diagram.
-
20N.2.SL.TZ0.a:
Sketch the complementary strand to complete the section of a DNA diagram.
-
22M.1A.SL.TZ1.6:
What are linked by hydrogen bonds?
A. Hydrogen and oxygen within a water molecule
B. Phosphate and sugar within a DNA molecule
C. Base and sugar between DNA nucleotides
D. Hydrogen and oxygen in different water molecules
- 19N.2.SL.TZ0.6a: Draw the structure of a section of DNA showing all possible bases.
- 19N.2.SL.TZ0.a: Draw the structure of a section of DNA showing all possible bases.
- 22N.1A.SL.TZ0.6: What is the arrangement of subunits in a DNA nucleotide? A. sugar – base – phosphate B. sugar –...
- 22N.1A.HL.TZ0.7: What is the arrangement of the components of nucleotides in a single DNA strand?
- SPM.2.HL.TZ0.10b: Explain how the function of DNA is linked to its molecular structure.
- SPM.2.HL.TZ0.b: Explain how the function of DNA is linked to its molecular structure.
-
23M.1A.SL.TZ1.25:
The image of the X-ray diffraction of calf thymus DNA was obtained by R. Franklin and R. Gosling in 1953.
[Source: Franklin, R.E. and Gosling, R.G., 1953. [image online]
Available at: https://scripts.iucr.org/cgi-bin/paper?a00979.
[Accessed 8 March 2022].]What does this image show about the structure of DNA?
A. It is associated with histones.
B. It has a helical shape.
C. It contains deoxyribose.
D. It contains four nitrogenous bases.
A1.2.7. Differences between DNA and RNA
- 19M.2.SL.TZ2.7a: Distinguish between the structures of DNA and RNA.
- 19M.1A.SL.TZ1.7: What is common to RNA and DNA? A. Thymine B. Nitrogenous bases C. Histones D. Deoxyribose
-
23M.1A.SL.TZ1.11:
How do DNA and messenger RNA (mRNA) molecules differ in eukaryotes?
A. mRNA is twice the size of DNA and is formed from four different bases.B. DNA contains ribose while mRNA contains deoxyribose.
C. mRNA has the same bases as DNA but contains ribose.
D. DNA has two strands while mRNA has only one.
- 19M.2.SL.TZ2.7a: Distinguish between the structures of DNA and RNA.
- 19M.2.SL.TZ2.a: Distinguish between the structures of DNA and RNA.
- 19M.1A.SL.TZ1.7: What is common to RNA and DNA? A. Thymine B. Nitrogenous bases C. Histones D. Deoxyribose
-
23M.1A.SL.TZ1.11:
How do DNA and messenger RNA (mRNA) molecules differ in eukaryotes?
A. mRNA is twice the size of DNA and is formed from four different bases.B. DNA contains ribose while mRNA contains deoxyribose.
C. mRNA has the same bases as DNA but contains ribose.
D. DNA has two strands while mRNA has only one.
A1.2.8. Role of complementary base pairing in allowing genetic information to be replicated and expressed
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
- SPM.1A.HL.TZ0.3: Which property of DNA explains how genetic information can be replicated accurately? A. ...
A1.2.9. Diversity of possible DNA base sequences and the limitless capacity of DNA for storing i
NoneA1.2.10. Conservation of the genetic code across all life forms as evidence of universal common ancestry
NoneA1.2.11. Directionality of RNA and DNA
NoneA1.2.12. Purine-to-pyrimidine bonding as a component of DNA helix stability
NoneA1.2.13. Structure of a nucleosome
- 22M.2.HL.TZ2.5a.i: Describe the structure of nucleosomes.
-
22M.1A.HL.TZ2.26:
The diagram shows the structure of a nucleosome.
[Source: Zephyris. Nucleosome 1KX5 colour coded. Available at https://en.wikipedia.org/wiki/Nucleosome#/media/File:Nucleosome_1KX5_colour_coded.png
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license (https://creativecommons.org/licenses/by-sa/3.0/deed.en).]What is the structure labelled T?
A. 5' end of RNA
B. 5' end of uncoiled DNA
C. N-terminal tail of one DNA strand
D. N-terminal tail of one histone
- 22N.2.SL.TZ0.4a: Identify the protein labelled in the diagram.
- 22M.2.HL.TZ2.5a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.5a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.5a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.5a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.5a.i: Describe the structure of nucleosomes.
- 22M.2.HL.TZ2.a.i: Describe the structure of nucleosomes.
-
22M.1A.HL.TZ2.26:
The diagram shows the structure of a nucleosome.
[Source: Zephyris. Nucleosome 1KX5 colour coded. Available at https://en.wikipedia.org/wiki/Nucleosome#/media/File:Nucleosome_1KX5_colour_coded.png
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license (https://creativecommons.org/licenses/by-sa/3.0/deed.en).]What is the structure labelled T?
A. 5' end of RNA
B. 5' end of uncoiled DNA
C. N-terminal tail of one DNA strand
D. N-terminal tail of one histone
- 22N.2.SL.TZ0.4a: Identify the protein labelled in the diagram.
- 22N.2.SL.TZ0.a: Identify the protein labelled in the diagram.
A1.2.14. Evidence from the Hershey–Chase experiment for DNA as the genetic material
-
19M.1A.HL.TZ2.11:
Hershey and Chase used a bacteriophage (a virus that infects bacteria) to investigate the chemical nature of genes. The diagram shows a bacteriophage.
[Source: Graham Knott and Christel Genoud, ‘Commentary: is EM dead?’, Journal of Cell Science (2013),
126: 4545–4552, reproduced with permission. http://jcs.biologists.org/content/126/20/4545.figures-only
doi: 10.1242/jcs.124123 http://www.biologists.com/journal-of-cell-science]The sulphur in the protein and the phosphorus in the DNA of the bacteriophage were radioactively labelled. The data obtained after bacterial infection and centrifugation are shown in the table.
What did Hershey and Chase conclude from their experiment?
A. DNA was mainly outside the bacterial cells.
B. Viruses infect bacterial cells with proteins.
C. Viral DNA was found within the bacterial cells.
D. Neither protein nor DNA were chemicals making up genes in viruses.
-
21M.1A.HL.TZ2.26:
The graph shows results of an experiment by Hershey and Chase in 1952 in which bacteria were infected with a mixture of virus particles labelled with either 32P or 35S. A suspension of the infected bacteria was agitated with a blender, and samples collected from the suspension were centrifuged to record the percentage of isotope remaining on the outside of the cells.
[Source: Republished with permission of ROCKEFELLER UNIVERSITY PRESS, from Independent functions of protein and nucleic acid in growth of bacteriophage. Hershey, A.D. and Chase, M., 1952. (Journal of General Physiology, 36(1), p.47). Society of General Physiologists, Rockefeller Institute for Medical Research, Rockefeller Institute; permission conveyed through Copyright Clearance Center, Inc.]
What do curves X and Y represent?
-
19M.1A.HL.TZ2.11:
Hershey and Chase used a bacteriophage (a virus that infects bacteria) to investigate the chemical nature of genes. The diagram shows a bacteriophage.
[Source: Graham Knott and Christel Genoud, ‘Commentary: is EM dead?’, Journal of Cell Science (2013),
126: 4545–4552, reproduced with permission. http://jcs.biologists.org/content/126/20/4545.figures-only
doi: 10.1242/jcs.124123 http://www.biologists.com/journal-of-cell-science]The sulphur in the protein and the phosphorus in the DNA of the bacteriophage were radioactively labelled. The data obtained after bacterial infection and centrifugation are shown in the table.
What did Hershey and Chase conclude from their experiment?
A. DNA was mainly outside the bacterial cells.
B. Viruses infect bacterial cells with proteins.
C. Viral DNA was found within the bacterial cells.
D. Neither protein nor DNA were chemicals making up genes in viruses.
-
21M.1A.HL.TZ2.26:
The graph shows results of an experiment by Hershey and Chase in 1952 in which bacteria were infected with a mixture of virus particles labelled with either 32P or 35S. A suspension of the infected bacteria was agitated with a blender, and samples collected from the suspension were centrifuged to record the percentage of isotope remaining on the outside of the cells.
[Source: Republished with permission of ROCKEFELLER UNIVERSITY PRESS, from Independent functions of protein and nucleic acid in growth of bacteriophage. Hershey, A.D. and Chase, M., 1952. (Journal of General Physiology, 36(1), p.47). Society of General Physiologists, Rockefeller Institute for Medical Research, Rockefeller Institute; permission conveyed through Copyright Clearance Center, Inc.]
What do curves X and Y represent?