1 / 8

Title: Inheritance

Extension Could DNA have been discovered without Mendel?. Title: Inheritance

dacian
Download Presentation

Title: Inheritance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Extension Could DNA have been discovered without Mendel? Title: Inheritance In pairs, decide who is “noughts” and who is “crosses”. If you answer the question correctly, you win the square. If you both don’t know the answer, look it up in your book. You have 5 minutes to play the game.

  2. The discovery of DNA – possibly one of the greatest scientific achievements of all time? The 1962 Nobel Prize was awarded to James Watson, Francis Crick and Maurice Wilkins for solving one of the most important biological riddles, the structure of DNA. Why is DNA so important? Many people think that they should not have all the credit for the discovery and that Rosalind Franklin was overlooked. Was she?

  3. You need to know the basic structure of DNA. You can use the initials of the bases rather than the names. Do Label the diagram and then describe the structure of DNA. Think Why was the discovery of DNA structure so important?

  4. almost all organisms – bacteria, plants, yeast and animals – carry genetic information as DNA. One exception is some viruses that use RNA instead. • different species need different amounts of DNA. • the DNA of humans is composed of approximately 3 billion base pairs, making up a total of almost a meter-long stretch of DNA in every cell in our bodies. • in order to fit, the DNA must be packaged in a very compact form • human DNA is packaged in 23 distinct chromosome pairs.

  5. @rosfranklin Send a tweet to all of those involved in the discovery of DNA. Tell Gregor Mendel what DNA is and why it is so important. Tell Watson and Crick what their discovery has led onto in the last few years and what might happen in the future. Tell Rosalind Franklin whether or not you think she should have been credited for the discovery of DNA and why you think this. @gregmendelmonk @watsoncrick62

  6. DNA discovery – graded questionsWatson, Crick and Wilkins received the Nobel Prize in 1962 but Franklin was not credited by any of them. Wilkins was friendly with Watson and Crick but openly critical of Franklin. Grade C Why were Watson and Crick credited with the discovery of DNA? What was Wilkins role in the discovery? Grade B Rosalind Franklin identified the structure of DNA in an X Ray Her work was used without her permission by Watson and Crick (Wilkins showed them). Is this acceptable in the race to discover new ideas? Explain your answer and suggest what scientists must do instead. Grade A Franklin died in 1958. Only living people can be awarded the Nobel Prize so Franklin was not included, however no one had ever nominated her anyway. What reasons can you think of to explain her omission? Grade A* Franklin would have worked out the structure of DNA if Watson and Crick had not. Should she have been nominated for the prize? Was her work more significant than Watson and Crick’s? Can one scientist ever claim to have made a discovery?

More Related