DNA Structure, and Replication

What are the DIFFERENCES between purine and pyrimidine? (Select 2)

• Purine is more purified than pyrimidine

• None, they are identical

• Purine consist of two rings fused together, while pyrimidine is only one ring

• They both contain lots of nitrogen

Which of the following are PYRIMIDINES?

• Adenine

• Cytosine

• Thymine

• Guanine

Which of the following are PURINES? (Select 2)

• Adenine

• Cytosine

• Thymine

• Guanine

Who is credited with the discovery of the structure of DNA?

• Erica Lanius

• James Watson

• Kanye West

• Rosalind Franklin

What is the structure of DNA?

• A Double-Helix

• A Scribble

• A Flat Ladder

• A Zig Zag

What does the enzyme, helicase do?

• It causes a nuclear explosion of the DNA

• It causes the DNA to "unzip" itself

• It causes the base pairs to join

• It creates a hydrogen bond

What shape is the replication fork?

• X

• Æ

• Y

• Ø

What way does the LAGGING STAND go?

• 5' to 3'

• 3' to 5'

• The Oregon Trail

• 4' to 6'

In which phase of the cell cycle does DNA replication occur?

• Synthesis

• Metaphase

• Telophase

• Waxing Gibbous

Which of the following is true?

• DNA replication is semi conservative

• DNA repliction is conservative

• DNA replication is progressive

• DNA replication is dispersive