Lesson T4.1.3
T4.1.3 The DNA model and its discovery Quiz: KS3 Biology, Unit 4
20 questions
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Lesson T4.1.3, The DNA model and its discovery: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 4: Genetics and evolution, written with Revision Ninja.
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The 20 questions
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Who were the scientists who built the double helix model of DNA in 1953?
- Darwin and Wallace
- Mendel and Morgan
- Pasteur and Koch
- Watson and Crick
-
Which two scientists produced X-ray images of DNA that helped the model?
- Wilkins and Franklin
- Darwin and Mendel
- Watson and Crick
- Pasteur and Koch
-
What technique did Rosalind Franklin use to study DNA?
- Chromatography
- X-ray diffraction
- Electron microscopy
- Electrophoresis
-
What key process did the double helix model help explain?
- Photosynthesis
- Digestion
- DNA copying
- Osmosis
-
Why is sharing data important in scientific research?
- To increase prices
- To save electricity
- To hide mistakes
- Peer review
-
Which feature of the DNA model explains how it is copied?
- Complementary base pairs
- Sugar-phosphate backbone
- Hydrogen bonds alone
- Double helix shape
-
Which scientist's work on DNA used images of molecules created from X-ray diffraction?
- Gregor Mendel
- Louis Pasteur
- Rosalind Franklin
- Charles Darwin
-
What does a physical model of DNA primarily help students understand?
- Energy production
- Protein digestion
- Cell division speed
- Structure relates to function
-
Which technique was vital in providing key evidence for the structure of DNA?
- X-ray crystallography
- Chromatography
- Gel electrophoresis
- Electron microscopy
-
What does the double helix shape of DNA look like?
- A flat sheet
- A solid ball
- A twisted ladder
- A straight tube
-
Which scientist is associated with the theory of natural selection?
- Gregor Mendel
- Charles Darwin
- Francis Crick
- Rosalind Franklin
-
What important evidence did Rosalind Franklin's images provide?
- Chromosome number
- Shape and dimensions
- Protein synthesis rates
- Cell membrane thickness
-
What is the approximate number of base pairs in a human genome?
- 3 million
- 3 trillion
- 3 billion
- 3 thousand
-
What do scientists mean when they say DNA carries a genetic code?
- Energy is released
- Cells create glucose
- Base sequence encodes proteins
- DNA mutates constantly
-
Why was understanding base pairing crucial for Watson and Crick?
- It stopped mutations
- It measured cell size
- It explained DNA copying
- It produced ATP
-
Which factor was crucial in the discovery of the DNA model?
- Animal breeding
- Collaborative research
- Computer simulations
- Pure chance
-
What is the main modern application of the DNA double helix model?
- Electrical engineering
- Genetics and biotechnology
- Weather forecasting
- Geological mapping
-
What forms the rungs linking the two strands of the DNA double helix?
- Base pairs
- Amino acids
- Sugar molecules
- Phosphate groups
-
Which base pairs with adenine in DNA?
- Guanine
- Thymine
- Cytosine
- Uracil
-
Which base pairs with guanine in DNA?
- Cytosine
- Thymine
- Adenine
- Uracil
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