DNA Replication Check In #1

What information did James Watson need in order to make the connections about this arrangement?

• Erwin Chargaff's base pairing rules

• Rosalind Franklin's photo 51

• Freidrich Meischer's reports on "nuclein"

• Avery, MacLeod, and McCarty's work with radioactive dyes

Did James Watson win a Nobel Prize for this discovery?

• Yes

• No

In the video/animation, what is the long pink structure seen stretching across the screen?

• DNA Helicase

• DNA Polymerase

• Ligase

• DNA

Which enzyme is unzipping the double helix of DNA?

• Polymerase

• Primase

• Helicase

• Ligase

If this animation has shown the "Leading Strand" copying, what is happening on the other strand?

• "Lagging Strand" is being copied more slowly and will finish much later

• "Lagging Strand" is being copied in pieces / fragments toward the replication fork

• "Lagging Strand" is being copied in reverse with many more errors

• "Lagging Strand" is being copied in the same smooth continuous way but in reverse

Are YOU going to join my band, "Tracy and the Okazaki Fragments"? If so, what role would you play?

:)

• YES

• NO

• Drums

• Guitar

• Keyboard

Which key enzyme has been left out of the explanation so far?

• DNA Helicase

• DNA Polymerase

• DNA Ligase