DNA + Its Discovery

HideShow resource information
  • Created by: eemoyeni
  • Created on: 18-01-14 21:17
Step 1 of Extracting DNA
Kiwi fruit is mashed up and mixed with salty water and detergent. This breaks open the cells and helps to release the DNA from the nuclei.
1 of 12
Step 2 of Extracting DNA
Protease enzyme is added to the filtered mixture. The enzyme helps to break up proteins in cell membranes and so release more DNA.
2 of 12
Step 3 of Extracting DNA
Ice-cold ethanol is poured carefully down inside the tube into the mixture. The ethanol makes the DNA separate from the liquid so it is easy to lift.
3 of 12
Who used X-rays to study DNA?
Maurice Wilkins and Rosalind Franklin studied the structure of DNA using X-rays.
4 of 12
Who worked out how the atoms were grouped?
Franklin studied X-ray photographs of DNA to work out how the atoms were grouped.
5 of 12
What did Watson and Crick do?
James Watson and Francis Crick interpreted data from other scientists in their study of DNA structure.
6 of 12
What did Franklin's photographs help with?
The photographs were the final clue that helped them build the double helix model.
7 of 12
How was the human genome decoded?
Scientists in 18 different countries collaborated to decode the human genome.
8 of 12
What is the Human Genome?
This is the order of bases on all the human chromosomes.
9 of 12
Why and when was the human genome work published?
The work was published in 2003 so that any scientist can use the information to develop new medicines and techniques.
10 of 12
What is an advantage of identification of faulty genes?
Knowing if you have a faulty gene could help a person and their family prepare for its effects.
11 of 12
What is gene therapy?
This involves replacing faulty alleles in body cells with healthy ones. This would allow the affected person to live a normal life.
12 of 12

Other cards in this set

Card 2

Front

Step 2 of Extracting DNA

Back

Protease enzyme is added to the filtered mixture. The enzyme helps to break up proteins in cell membranes and so release more DNA.

Card 3

Front

Step 3 of Extracting DNA

Back

Preview of the front of card 3

Card 4

Front

Who used X-rays to study DNA?

Back

Preview of the front of card 4

Card 5

Front

Who worked out how the atoms were grouped?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all DNA and inheritance resources »