DNA Structure and History

Who is responsible for producing this image?

• Francis Crick
• James Watson
• Rosalind Franklin
• Watson and Crick

What does this image show?

• Double helical structure of DNA
• Triple Helical Structure of DNA
• Double helical structure of RNA
• Triple Helical Structure of RNA

Tags

NGSS.HS-LS1-1

What was Watson and Crick's main scientific accomplishment?

• Building the first accurate model of DNA
• Isolating strains of pneumonia causing bacteria
• Determining base pairing rules
• Discovering the process of genetic transformation

Tags

NGSS.HS-LS1-1

Who was responsible for the model shown?

• Oswald Avery
• Watson and Crick
• Erwin Chargaff
• Rosalind Franklin

Tags

NGSS.HS-LS1-1

DNA stands for

• Deoxyribonucleic Acid

• Ribonucleic acid

• Hydrofluoric acid

• Lysergic acid

What is the shape of DNA?

• three oligonucleotides wind around each other and form a triple helix

• Two strands coiled called in a double helix

• a spiral on a conic surface, with the distance to the apex an exponential function of the angle indicating direction from the axis.

• a curve in three-dimensional space.

Adenine always pairs with

• Uracil

• Guanine

• Cytosine

• Thymine

The sides of the DNA ladder are

• hydrogen

• deoxyribose

• phosphate

• purine

Guanine always pairs with

• Urical

• Cytosine

• Adenine

• Thymine

What is the complementary sequence:

C A T T A G

• G T A C U G

• G T A A T C

• G T C C T A

• T G C C G T