Shape of DNA

What scientists used models to find the correct structure of DNA?

• Franklin and Hooke

• Crick and Einstein

• Watson and Crick

• Watson and Sherlock

What is the basic shape of DNA?

• Single stranded

• Double helix

• triple stranded

The primary physical shape of double-stranded DNA molecules

• Double circular

• Double Helix

• Double straight

What is the shape of DNA as discovered by Watson and Crick?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Which component of DNA determines its double helix structure?

• Phosphate backbone

• Nitrogenous bases

• Hydrogen bonds

• Sugar molecules

What is the significance of the double helix structure of DNA?

• It allows DNA to be single-stranded

• It enables DNA replication and repair

• It prevents DNA from interacting with proteins

• It makes DNA more rigid

In the double helix model of DNA, what forms the 'rungs' of the ladder?

• Phosphate groups

• Sugar molecules

• Nitrogenous base pairs

• Hydrogen bonds

How does the double helix structure of DNA facilitate genetic inheritance?

• By allowing DNA to be single-stranded

• By enabling complementary base pairing

• By making DNA more stable

• By preventing mutations

Tags

NGSS.HS-LS1-1

What is the role of hydrogen bonds in the DNA double helix?

• They connect the sugar-phosphate backbone

• They stabilize the nitrogenous base pairs

• They form the outer structure of DNA

• They prevent DNA from unwinding

Which experiment led to the discovery of the double helix structure of DNA?

• Avery-MacLeod-McCarty experiment

• Hershey-Chase experiment

• Meselson-Stahl experiment

• X-ray crystallography by Franklin