DNA structure and scientists

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Discovered that there was the same amount of A and T in a cell, and C and G in a cell, across many different species.

• James Watson & Francis Crick

• Rosalind Franklin

• Maurice Wilkins

• Linus Pauling

• Erwin Chargaff

Tags

NGSS.HS-LS3-1

Provided clear x-ray crystallography images of DNA

• James Watson & Francis Crick

• Rosalind Franklin

• Maurice Wilkins

• Linus Pauling

• Erwin Chargaff

Worked on DNA imaging techniques and published Franklin's x-ray crystallography image of DNA

• James Watson & Francis Crick

• Rosalind Franklin

• Maurice Wilkins

• Linus Pauling

• Erwin Chargaff

Built models to determine that DNA was a double helix shape with base pairs A-T and G-C in rungs between the sugar/phosphate backbone of DNA.

• James Watson & Francis Crick

• Rosalind Franklin

• Maurice Wilkins

• Linus Pauling

• Erwin Chargaff

Tags

NGSS.HS-LS1-1

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Name this structure

• double helix
• nucelotide
• twisted ladder
• hydrogen bond

Tags

NGSS.HS-LS1-1

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogenous base

• sugar, oxygen, nitrogenous base

• sugar, phosphate, nitrogenous base

• sugar, phosphate, protein

What SHAPE is DNA?

• single strand

• straight ladder

• double helix (twisted ladder)

• DNA has no shape

Tags

NGSS.HS-LS1-1