Reading 2

Question 1

Dispersive replication

Answer 1

both nucleotide strands break down into fragments, always produces hybrids b/c has parts of original and new

Question 2

how many stages does replication have

Answer 2

4

Question 3

the stages of replication

Answer 3

initiation, unwinding, elongation termination
(I understand every thing)

Question 4

-ase

Answer 4

enzyme

Question 5

helicase

Answer 5

unzipping enzyme: unzips the 2 strands in DNA and breaks the hydrogen bonds

Question 6

primase

Answer 6

the initializer, makes primer so the DNA polymerase can find where to start working

Question 7

primer is made of what

Answer 7

RNA

Question 8

ligase

Answer 8

glues the DNA fragments together

Question 9

DNA replication starts where

Answer 9

the origin

Question 10

step 1 of replication

Answer 10

helicase comes to unzip the DNA strands

Question 11

step 2 (1 of 2) of replication

Answer 11

-single-stranded binding proteins bind to the strands of DNA to keep them separated

Question 12

step 2 (2 of 2) of replication

Answer 12

topoisomerase keeps the DNA from supercoiling

Question 13

step 3 of replication

Answer 13

primase makes primers on both strands

Question 14

step 4 of replication

Answer 14

DNA polymerase builds the new strands
-has a leading strand and a lagging strand

Question 15

lagging strand

Answer 15

(on 5 to 3)
-lagging because primers have to keep being placed and are forming fragments called Okazaki fragments

Question 16

Okazaki fragments

Answer 16

formed in the lagging strand of the DNA

Question 17

step 5 of replication

Answer 17

ligase comes in the fill the gaps between the Okazaki fragments

Question 18

step 6 of replication

Answer 18

DNA polymerase proofreads its work for mistakes

Question 19

result of replication

Answer 19

2 DNA strands

Question 20

semi conservative

Answer 20

each resulting DNA molecule has 1 old original strand