The discovery of the structure of DNA
Lesson 2 / 7
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Waxaan sharxi karaa sida saynisyahannadu u ururiyeen caddayn oo ay u wadaageen natiijooyin si ay u horumariyaan moodel sharxaya dhismaha DNA-da.
Introduction
In this lesson: I can describe how scientists collected evidence and shared findings to develop a model to describe the structure of DNA. DNA was discovered in 1869, but scientists did not work out its structure until 1953. Scientists collected evidence and shared findings to develop a model to describe the structure of DNA.
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Quizzes
1. Which type of cell does **not** store DNA in a nucleus?
- Animal cell
- Plant cell
- Correct answer:Bacteria cell
- Fungi cell
2. What is stored in DNA?
- an organism's features
- the nucleus
- Correct answer:the genetic code
- cells
3. Which of the following statements best describe the structure of DNA?
- spiralled
- laddered
- helix
- Correct answer:double-helix
4. Why was the heredity of features discovered before DNA?
- Organisms only have a small amount of DNA.
- DNA is a chemical so cannot be observed.
- Correct answer:Features can be observed without apparatus, DNA cannot.
5. What are the four letters that make up the genetic code?
- ACGD
- Correct answer:ATGC
- ADGC
- GCTD
- CGDA
1. What did James Watson and Francis Crick discover?
- the role of DNA
- the existence of DNA
- Correct answer:the structure of DNA
- the location of DNA
2. In 1952 what did Rosalind Franklin produce?
- a computer model
- a photograph
- a physical model
- Correct answer:an X-ray image
3. What was the name of the scientist in a team with Rosalind Franklin at King's College?
- James Watson
- Correct answer:Maurice Wilkins
- Francis Crick
What pupils see
The same lesson as a pupil sees it. You can set any section as work on its own.
- IntroductionPrepare
- Starter quizActivate · 5 questions
- Lesson videoLearn
- Exit quizCheck · 3 questions