Chapter 16 Flashcards Preview

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Flashcards in Chapter 16 Deck (14):
1

What was Griffith's experiment?

Mice, transformation

2

What was Hersehy and Chase's experiment?

Phages to discover DNA for phage

3

What was Chargaff's experiment?

DNA variation per organism, A=T

4

What was Wilkins and Franklin's experiment?

X-Ray crystallography to create pictures, structure of DNA

5

What was Watson and Clark's experiment?

A pairs with T, G with C

6

Purine is ____-ringed, pyrimidine is ____-ringed

double ringed
single ringed

7

What is the correct model of DNA after replication

Semi-conservative

8

What unwinds DNA?

Helicase

9

What does topoisomerase do?

Corrects overwinding ahead of forks

10

How is a new DNA strand started after origin is opened?

Primer creates primase

11

What are the 2 jobs of DNA polymerase?

-Add nucleotides from 3' end
-Proofread new DNA

12

What joins together Okazaki fragments?

DNA ligase

13

If DNA polymerase misses an error, how is it corrected?

Mismatch repair of DNA

14

If DNA is damaged by an outside source, how is it corrected?

Nucleotide excision repair