Mathes DNA Structure

sugar molecule phosphate group and 1 nitrogen base

• 1 nucleotide
• Sugar molecule
• how many hydrogen bonds does Adenine and thymine have
• how many hydrogen bonds does cytosine and guanine have

What attaches to the nitrogen base in DNA (deoxyribose; pentose)

• Sugar molecule
• Nitrogenous base
• Hydrogen bond
• Deoxyribose

A functional group consisting of a phosphorus atom covalently bonded to four oxygen atoms

• Phosphate group
• Sugar molecule
• Nucleotide
• Rosalind Franklin

alternating deoxyribose and phosphates on the outside of DNA.

• sugar phosphate backbone
• Nitrogenous base
• 1 nucleotide
• Watson and Crick

adenine, thymine, cytosine and guanine

• nitrogen bases
• Nitrogenous base
• Double helix
• Phosphate group

How many hydrogen bonds does Adenine and thymine have?

• two

• one

• three

• four

How many hydrogen bonds does cytosine and guanine have?

• three

• two

• four

• Deoxyribose

Found that [A=T] and [G=C], found that ratio varied between species

• Chargaff
• 1 nucleotide
• how many hydrogen bonds does Adenine and thymine have
• sugar phosphate backbone

Tags

NGSS.HS-LS4-3

Woman who generated x-ray images of DNA, she povided Watson and Crick with key data about DNA

• Rosalind Franklin
• Deoxyribose
• how many hydrogen bonds does Adenine and thymine have
• how many hydrogen bonds does cytosine and guanine have

Developed the double helix model of DNA

• Watson and Crick
• Rosalind Franklin
• Phosphate group
• Deoxyribose