When replications starts, an origin of replications forms, consisting of two ___

Question

When replications starts, an origin of replications forms, consisting of two _____moving in opposite directions.
DNA double helix is separated into single strands by the enzyme____________,
Newly-exposed unreplicated DNa is protected by ______.
Short segments of RNA are synthesized, called________.
The enzyme that synthesizes the short segments of RNA is called a ______.
The short RNA segments provide a free_______ for replication.
New DNA is synthesized in the ________direction.
The enzyme that removes tightened coils ahead of the replication fork is __________.
The enzyme that catalyzes new DNA synthesis is _________.
DNA synthesis occurs continuously on the ___________.
DNA synthesis occurs in small sections on the ________.
Fragments of discontinuous DNA synthesis are called________.
Gaps in the sugar-phosphate backbone of DNA are closed by________.

Choices:
DNA ligase
Transfer RNA
DNA helicase
DNA polymerase
Primase
Okazaki fragments
Hexokinase
RNA primers
ribosome
lagging strand
leading strand
5' phosphate
3' to 5'
single strand binding protein
replication fork(s)
5' to 3'
topoisomerase
3' OH

(Can be used more than once)

Explanation / Answer

When replications starts, an origin of replications forms, consisting of two replication fork(s)moving in opposite directions.
DNA double helix is separated into single strands by the enzyme5' phosphate
Newly-exposed unreplicated DNa is protected by Transfer RNA.
Short segments of RNA are synthesized, called RNA primers
The enzyme that synthesizes the short segments of RNA is called a DNA polymerase
The short RNA segments provide a free 3' OH for replication.
New DNA is synthesized in the 3' to 5 'direction.
The enzyme that removes tightened coils ahead of the replication fork is DNA helicase.
The enzyme that catalyzes new DNA synthesis is _DNA polymerase.
DNA synthesis occurs continuously on the _leading strand.
DNA synthesis occurs in small sections on the DNA helicase.
Fragments of discontinuous DNA synthesis are called lagging strand.
Gaps in the sugar-phosphate backbone of DNA are closed byDNA ligase

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