DNA REPLICATION (2ND PART OF LQ2)

Question 1

Parent DNA unzips in order to create new — —-.

Answer 1

daughter DNA

Question 2

In DNA replication
a - ?
g - ?

Answer 2

a - t
g - c

Question 3

this is responsible for straightening the strand. Its movement is directed towards the parts that need to be unwound.

Answer 3

topoisomerase

Question 4

the unzipping enzyme, follows the movement of topoisomerase

Answer 4

helicase

Question 5

shaped like the letter “Y.” These are the freshly separated strands.

Answer 5

replication fork

Question 6

This is to prevent the strands from recombining, and this separation is permanent.

Answer 6

SINGLE STRANDED BINDING PROTEINS

Question 7

this is 3 ’to 5’
→ continuous

Answer 7

leading strand

Question 8

this is 5’to3’
→ discontinuous

Answer 8

lagging strand

Question 9

the lagging strand forms the _____-

Answer 9

okazaki fragments

Question 10

building enzyme, responsible for constructing the complementary partner strand

Answer 10

● DNA POLYMERASE

Question 11

true or false

the dna polymerase starts from the higher position moving to the lover position

Answer 11

FALSE

starts from the lower, moving to the higher position

Question 12

the starting
point in DNA replication

Answer 12

primers

Question 13

enzyme that creates the starting point or Primer

Answer 13

dna primase

Question 14

The middle region between two primers forms a gap due to the freshly separated strands.

Answer 14

● OKAZAKI FRAGMENTS

Question 15

→ gluing enzyme
→ It is responsible for joining or “gluing” together the Okazaki fragments on the lagging strand

Answer 15

LIGASE

Question 16

→ DNA repair enzyme
→ It functions by cleaving or cutting DNA strands

Answer 16

NUCLEASE