What steps take place during DNA replication?

Answer 1

Unzipping, Complementary base pairing, Backbone formation.

Also known as Initiation, Replication and Termination.

1. Interphase: replication and growth of the chromosomes occur.

2. Prophase: the chromatin condenses to see the individual chromosomes and centrioles move toward the opposite poles of the cell and spindle fibers grow.

3. Metaphase: the chromosomes align in the center of the cell.

4. Anaphase: spindles attach to the chromosomes and split them in part towards the opposite poles.

5. Telophase: the cell begins to separate into to new daughter cells.

6. Cytokinesis: the nucleus begins to form and the cells are completely cut off from each other.

Answer 2

DNA replicationbegins with the unzipping of the parent molecule as the hydrogen bonds between the base pairs are broken. Once exposed, the sequence of bases on each of the separated strands serves as a template to guide the insertion of a complementary set of bases on the strand being synthesized. The new strands are assembled from deoxynucleoside triphosphates. Each incoming nucleotide is covalently linked to the "free" 3' carbon atom on the pentose as the second and third phosphates are removed together as a molecule of pyrophosphate (PPi). The nucleotides are assembled in the order that complements the order of bases on the strand serving as the template. Thus each C on the template guides the insertion of a G on the new strand, each G a C, and so on. When the process is complete, two DNA molecules have been formed identical to each other and to the parent molecule.

Answer 3

First, break the hydrogen bond between bases of the two antiparallel strands. Next, bind the RNA Primase. Next is the elongation process. Then, read the fragments and remove the RNA Primers. Finally, the last step is termination.

Answer 4

Primer made from primase attracts transcription factors, which call DNA-dependent DNA polymerase.

DNA-dependent DNA polymerase binds while helicase unwinds the helix.


Stable single-stranded DNA prevent the helix from re-annealing.


DNA polymerase adds nucleotides in a 5' to 3' direction.


RNAase replaces the RNA primer


Another DNA polymerase replaces nucleotides.


Ligase joins them together.

Answer 5

There is G1, G2, S(synthesis), and M(mitosis) phase.

(Correct Order)

G1 is the phase where the cell preps for separation

S is the synthesis phase, this phase is when the cell replicates

G2 is the phase when the cell duplicates all of the chromosomes

M or mitosis phase is the phase in which the one cell divides into 2 daughter cells

Answer 6

During DNA replication, the DNA molecule unwinds and separates into two strands. Each original strand serves as a template for the synthesis of a new complementary strand by DNA polymerase. The end result is two identical copies of the original DNA molecule.

Answer 7

http://www.dnareplication.info/stepsofdnareplication.php

Answer 8

Nucleus takes place during DNA replication.

Answer 9

Helicase unwinds double helix

Polymerase adds nucleotides

Ligase binds Okazaki fragments

Helix bonds again