The Discovery of DNA

The scientists who created an accurate model of the DNA double helix and won a Nobel Prize for this discovery

• Watson & Crick
• Watson, Crick, and Wilkins
• Wilkins & Crick
• Watson, Crick, Wilkins, and Franklin

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Tags

NGSS.HS-LS1-1

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.MS-PS1-1

Chargraff's Rule says that

• Adenine will be equal to Thymine
• Cytosine will be equal to Thymine
• Uracil will be equal to Guanine
• Adenine will be equal to Cytosine

Franklin used x-ray crystallography to determine the shape of the DNA molecule is

• a cloverleaf

• a braided rope

• a pleated sheet

• a helix

Which scientist(s) determined that viruses contain DNA?

• Avery & McLeod

• Watson & Crick

• Griffith & Franklin

• Hershey & Chase

What process did Griffith discover using mice and altered forms of the pneumonia bacteria?

• transcription

• mutation

• transformation

• translation

Who discovered that bacteria could be changed by the process of transformation?

• Griffith

• Hershey & Chase

• Avery

• Franklin