AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The DNA double helix model used today is the product of research done by scientists
A
Watson and Crick
B
Hershey and Chase
C
Pauling and Franklin
D
Chargaff and Griffith
Explanation: 

Detailed explanation-1: -The 3-dimensional double helix structure of DNA, correctly elucidated by James Watson and Francis Crick. Complementary bases are held together as a pair by hydrogen bonds.

Detailed explanation-2: -Taken in 1952, this image is the first X-ray picture of DNA, which led to the discovery of its molecular structure by Watson and Crick. Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule.

Detailed explanation-3: -Widely published zoology professor and genetics scholar Matthew Cobb states that the idea that Watson and Crick stole Franklin’s data is false, as the information was not confidential. Cobb does agree that Franklin’s work was crucial; however, he does not challenge the Nobel Prize distribution.

Detailed explanation-4: -Two weeks later James Watson and Francis Crick, at the Cavendish Laboratory at Cambridge, built their now celebrated model of DNA as a double helix.

There is 1 question to complete.